fix settings.conf

settings.conf

@@ -30,7 +30,7 @@ modules-search: [ local ]
 # For more information on running module instances, run Calamares in debug mode
 # and check the Modules page in the Debug information interface.
 # YAML: list of maps of string:string key-value pairs.
-instances:
+#instances:
 #- id:       owncloud
 #  module:   webview
 #  config:   owncloud.conf