Remove logging the language selection method

Removed the code to log whether map(removed long time back), search,
common languages used for selecting the language.

This logs were introduced to measure and adapt UI effectiveness.
No longer needed now.

Change-Id: I83bdd250cb6474da4fbf22aed2011071b9f9eba4

resources/js/ext.uls.displaysettings.js

@@ -313,8 +313,6 @@
 				onVisible: function () {
 					var $parent;
 
-					mw.uls.addEventLoggingTriggers();
-
 					if ( !displaySettings.$parent.$window.hasClass( 'callout' ) ) {
 						// Callout menus will have position rules.
 						// Others use the default position.