Fire hook when compact language links are opened

Following on from Icc64044d, we fire the
mw.uls.compact_language_links.open hook whenever that treatment is
opened (and not only the first time that the triggering element is
clicked).

Bug: T281928
Change-Id: I6fa966c22c738ca12bcbeb0225c03f3f8394ecee

resources/js/ext.uls.interface.js

@@ -473,8 +473,6 @@
 				!standalone
 			);
 
-			mw.hook( 'mw.uls.compact_language_links.open' ).fire();
-
 			// Trigger the click handler to open ULS once ready
 			if ( standalone ) {
 				// Provide access to display and input settings if this entry point is the single point