wxlib.bat generator variable seems unnecessary, the user's VS version…

… will be the default

readme.md

@@ -66,9 +66,7 @@ but there is some additional setup required:
 * Put the `lib\vc14x_x64_dll` folder from the 64-bit downloaded libraries in `wxlib\lib\vc_x64_lib`.
 * Put the `lib\vc14x_dll` folder from the 32-bit downloaded libraries in `wxlib\lib\vc_lib`.
 
-It's probably easier, however, to just use the `wxlib.bat` file to build it from the submodule source code in `wx`. If you want to try with Visual Studio 2022, you can edit the batch file or set an environment variable:
-  * `set WXB_GENERATOR="Visual Studio 17 2022"`
-  * `wxlib.bat`
+It's probably easier, however, to just use the `wxlib.bat` file to build it from the submodule source code in `wx`.
 
 Otherwise on other platforms there is probably some wxWidgets library package you can install and use. In theory could could use the `WXL_CONFIG` environment variable to tell the make build how to use it instead.
   * `export WXL_CONFIG=/path/to/wx-config`

wxlib.bat

@@ -11,9 +11,6 @@
 @set WXCMAKE64=vc64
 @set WXCMAKE32=vc32
 
-@if not defined WXB_GENERATOR set WXB_GENERATOR="Visual Studio 16 2019"
-
-@set WXCONF=%WXCONF% -G %WXB_GENERATOR%
 @set WXCONF=%WXCONF% -DwxBUILD_USE_STATIC_RUNTIME=ON
 @set WXCONF=%WXCONF% -DwxBUILD_SHARED=OFF
 @set WXCONF=%WXCONF% -DwxUSE_UNICODE=ON