Navigation: vclick handler: Do not avoid removing active class off button that already has it

This is a revert of 35eea35 and makes our faulty handling of the double vclick on iOS look even worse, but the correct solution for iOS is not to fix the button active-indication, but to fix the double-vclick-but-no-click problem - see #5149

Author: Gabriel Schulhof

js/jquery.mobile.navigation.js

@@ -1384,7 +1384,7 @@ define( [
 				$btn = $btn.closest( ".ui-btn" );
 			}
 
-			if ( $btn.length > 0 && !( $btn.hasClass( $.mobile.activeBtnClass ) || $btn.hasClass( "ui-disabled" ) ) ) {
+			if ( $btn.length > 0 && !$btn.hasClass( "ui-disabled" ) ) {
 				removeActiveLinkClass( true );
 				$activeClickedLink = $btn;
 				$activeClickedLink.addClass( $.mobile.activeBtnClass );