go: go fix with 1.18

Apply `go fix ./...` to the whole code base using go-1.18 to remove
old build tags.

asserts/sysdb/staging.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build withtestkeys || withstagingkeys
-// +build withtestkeys withstagingkeys
 
 /*
  * Copyright (C) 2016 Canonical Ltd

asserts/sysdb/testkeys.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build withtestkeys
-// +build withtestkeys
 
 /*
  * Copyright (C) 2016 Canonical Ltd

bootloader/assets/assetstesting.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build withbootassetstesting
-// +build withbootassetstesting
 
 /*
  * Copyright (C) 2021 Canonical Ltd

bootloader/withbootassettesting.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build withbootassetstesting
-// +build withbootassetstesting
 
 /*
  * Copyright (C) 2021 Canonical Ltd

bootloader/withbootassettesting_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build withbootassetstesting
-// +build withbootassetstesting
 
 /*
  * Copyright (C) 2021 Canonical Ltd

cmd/snap-bootstrap/cmd_initramfs_mounts_nosecboot.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build nosecboot
-// +build nosecboot
 
 /*
  * Copyright (C) 2019-2020 Canonical Ltd

cmd/snap-bootstrap/cmd_initramfs_mounts_secboot.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nosecboot
-// +build !nosecboot
 
 /*
  * Copyright (C) 2019-2020 Canonical Ltd

cmd/snap-repair/staging.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build withtestkeys || withstagingkeys
-// +build withtestkeys withstagingkeys
 
 /*
  * Copyright (C) 2017-2020 Canonical Ltd

cmd/snap-repair/testkeys.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build withtestkeys
-// +build withtestkeys
 
 /*
  * Copyright (C) 2021 Canonical Ltd

cmd/snap-seccomp/main_nonriscv64.go

@@ -1,7 +1,6 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //
 //go:build !riscv64
-// +build !riscv64
 
 /*
  * Copyright (C) 2021 Canonical Ltd

cmd/snap-seccomp/main_ppc64le.go

@@ -1,7 +1,6 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //
 //go:build ppc64le && go1.7 && !go1.8
-// +build ppc64le,go1.7,!go1.8
 
 /*
  * Copyright (C) 2017 Canonical Ltd

cmd/snap-seccomp/main_riscv64.go

@@ -1,7 +1,6 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //
 //go:build riscv64
-// +build riscv64
 
 /*
  * Copyright (C) 2021 Canonical Ltd

cmd/snap-seccomp/old_seccomp.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build oldseccomp
-// +build oldseccomp
 
 /*
  * Copyright (C) 2021 Canonical Ltd

cmd/snap-update-ns/bootstrap_ppc64le.go

@@ -1,7 +1,6 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //
 //go:build ppc64le && go1.7 && !go1.8
-// +build ppc64le,go1.7,!go1.8
 
 /*
  * Copyright (C) 2017 Canonical Ltd

cmd/snap/cmd_userd.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !darwin
-// +build !darwin
 
 /*
  * Copyright (C) 2017-2022 Canonical Ltd

cmd/snap/cmd_userd_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !darwin
-// +build !darwin
 
 /*
  * Copyright (C) 2016-2022 Canonical Ltd

cmd/snap/cmd_version_other.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !linux
-// +build !linux
 
 /*
  * Copyright (C) 2016 Canonical Ltd

gadget/install/encrypt.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nosecboot
-// +build !nosecboot
 
 /*
  * Copyright (C) 2020 Canonical Ltd

gadget/install/encrypt_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nosecboot
-// +build !nosecboot
 
 /*
  * Copyright (C) 2020 Canonical Ltd

gadget/install/export_secboot_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nosecboot
-// +build !nosecboot
 
 /*
  * Copyright (C) 2020 Canonical Ltd

gadget/install/install.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nosecboot
-// +build !nosecboot
 
 /*
  * Copyright (C) 2019-2020 Canonical Ltd

gadget/install/install_dummy.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build nosecboot
-// +build nosecboot
 
 /*
  * Copyright (C) 2019-2020 Canonical Ltd

gadget/install/install_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nosecboot
-// +build !nosecboot
 
 /*
  * Copyright (C) 2019-2022 Canonical Ltd

gadget/install/mount_other.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !linux
-// +build !linux
 
 /*
  * Copyright (C) 2020 Canonical Ltd

image/preseed/preseed_other.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !linux
-// +build !linux
 
 /*
  * Copyright (C) 2019-2022 Canonical Ltd

osutil/chattr_32.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build arm || 386 || ppc
-// +build arm 386 ppc
 
 /*
  * Copyright (C) 2016 Canonical Ltd

osutil/chattr_64.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build amd64 || arm64 || ppc64le || riscv64 || s390x
-// +build amd64 arm64 ppc64le riscv64 s390x
 
 /*
  * Copyright (C) 2016 Canonical Ltd

osutil/cp_other.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !linux
-// +build !linux
 
 /*
  * Copyright (C) 2014-2015 Canonical Ltd

osutil/export_fault_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build faultinject
-// +build faultinject
 
 /*
  * Copyright (C) 2016 Canonical Ltd

osutil/faultinject.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build faultinject
-// +build faultinject
 
 /*
  * Copyright (C) 2021 Canonical Ltd

osutil/faultinject_fake.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !faultinject
-// +build !faultinject
 
 /*
  * Copyright (C) 2021 Canonical Ltd

osutil/faultinject_fake_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !faultinject
-// +build !faultinject
 
 /*
  * Copyright (C) 2021 Canonical Ltd

osutil/faultinject_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build faultinject
-// +build faultinject
 
 /*
  * Copyright (C) 2021 Canonical Ltd

osutil/group_cgo.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build cgo
-// +build cgo
 
 /*
  * Copyright (C) 2017-2019 Canonical Ltd

osutil/group_no_cgo.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !cgo
-// +build !cgo
 
 package osutil
 

osutil/inotify/inotify_linux.go

@@ -1,5 +1,4 @@
 //go:build linux
-// +build linux
 
 // Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

osutil/inotify/inotify_linux_test.go

@@ -1,5 +1,4 @@
 //go:build linux
-// +build linux
 
 // Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

osutil/inotify/inotify_others.go

@@ -1,5 +1,4 @@
 //go:build !linux
-// +build !linux
 
 /*
 Copyright 2020 The Kubernetes Authors.

osutil/settime_32bit.go

@@ -1,8 +1,6 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 
 //go:build (386 || arm) && linux
-// +build 386 arm
-// +build linux
 
 /*
  * Copyright (C) 2021 Canonical Ltd

osutil/settime_64bit.go

@@ -1,7 +1,6 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 
 //go:build !386 && !arm && linux
-// +build !386,!arm,linux
 
 /*
  * Copyright (C) 2021 Canonical Ltd

osutil/sys/sysnum_16_linux.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build arm || 386
-// +build arm 386
 
 /*
  * Copyright (C) 2017 Canonical Ltd

osutil/sys/sysnum_32_linux.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build amd64 || arm64 || ppc || ppc64le || riscv64 || s390x
-// +build amd64 arm64 ppc ppc64le riscv64 s390x
 
 /*
  * Copyright (C) 2017 Canonical Ltd

osutil/udev/netlink/rawsockstop_other.go

@@ -1,5 +1,4 @@
 //go:build !arm64
-// +build !arm64
 
 // don't remove the newline between the above statement and the package statement
 // or else the build constraint will be ignored and assumed to be part of the package comment!

overlord/configstate/configcore/certs.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2020 Canonical Ltd

overlord/configstate/configcore/certs_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2020 Canonical Ltd

overlord/configstate/configcore/cloud.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2018 Canonical Ltd

overlord/configstate/configcore/cloud_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2018 Canonical Ltd

overlord/configstate/configcore/early_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2021 Canonical Ltd

overlord/configstate/configcore/export_runwithstate_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2023 Canonical Ltd

overlord/configstate/configcore/kernel.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2023 Canonical Ltd

overlord/configstate/configcore/netplan.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2021 Canonical Ltd

overlord/configstate/configcore/netplan_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2021 Canonical Ltd

overlord/configstate/configcore/proxy.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2017-2022 Canonical Ltd

overlord/configstate/configcore/proxy_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2017-2022 Canonical Ltd

overlord/configstate/configcore/refresh.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2017-2022 Canonical Ltd

overlord/configstate/configcore/refresh_test.go

@@ -1,6 +1,5 @@
 // -*- Mode: Go; indent-tabs-mode: t -*-
 //go:build !nomanagers
-// +build !nomanagers
 
 /*
  * Copyright (C) 2017-2018 Canonical Ltd