Remove excess parameter to g_app_info_launch()

Commit 39a840e2c3 added an additional parameter to shell_app_launch().
When adjusting callers, the parameter was also added accidentally to
calls of the confusingly similar g_app_info_launch() ...
Remove those to fix some warnings.

https://bugzilla.gnome.org/show_bug.cgi?id=781471

js/ui/remoteSearch.js

@@ -299,7 +299,7 @@ const RemoteSearchProvider = new Lang.Class({
         // the provider is not compatible with the new version of the interface, launch
         // the app itself but warn so we can catch the error in logs
         log('Search provider ' + this.appInfo.get_id() + ' does not implement LaunchSearch');
-        this.appInfo.launch([], global.create_app_launch_context(0, -1), false);
+        this.appInfo.launch([], global.create_app_launch_context(0, -1));
     }
 });