Widget: Don't swallow errors in remove events

The try/catch was only there to support jQuery <1.6.3, which we no
longer support.

Ref jquery/jquery#3554

ui/widget.js

@@ -32,16 +32,12 @@ $.cleanData = ( function( orig ) {
 	return function( elems ) {
 		var events, elem, i;
 		for ( i = 0; ( elem = elems[ i ] ) != null; i++ ) {
-			try {
 
-				// Only trigger remove when necessary to save time
-				events = $._data( elem, "events" );
-				if ( events && events.remove ) {
-					$( elem ).triggerHandler( "remove" );
-				}
-
-			// Http://bugs.jquery.com/ticket/8235
-			} catch ( e ) {}
+			// Only trigger remove when necessary to save time
+			events = $._data( elem, "events" );
+			if ( events && events.remove ) {
+				$( elem ).triggerHandler( "remove" );
+			}
 		}
 		orig( elems );
 	};