Remove redundant shinken_enable_web_ui2 variable

This variable was used once in the project to indicate the web ui should be
installed. Since we already need to add it to shinken_broker_modules it makes
more sense to re use that variable.
Closes: #2

README.md

@@ -28,9 +28,6 @@ have not been implemented yet)
     # Path of broker configuration
     shinken_config_broker: /etc/shinken/brokers/
 
-    # Do we want the web UI?
-    shinken_enable_web_ui2: true
-
     # List of modules to enable in the broker. 'webui2' enables web interface.
     shinken_broker_modules: 'webui2'
 

defaults/main.yml

@@ -9,9 +9,6 @@ shinken_virtualenv: /srv/shinken/environment
 # Path of broker configuration
 shinken_config_broker: /etc/shinken/brokers/
 
-# Do we want the web UI?
-shinken_enable_web_ui2: true
-
 # List of modules to enable in the broker. 'webui2' enables web interface.
 shinken_broker_modules: 'webui2'
 

tasks/main.yml

@@ -6,5 +6,5 @@
 - include: configure-shinken.yml
 
 - include: configure-shinken-webui.yml
-  when: "{{ shinken_enable_web_ui2 }}"
+  when: '"webui2" in shinken_broker_modules'