fix remove and empty to work properly in IE when an element with the id of...

fix remove and empty to work properly in IE when an element with the id of length exists. fixes ajax event hanlders in test suite from firing multiple times because they did not get cleaned up.

src/manipulation.js

@@ -186,8 +186,7 @@ jQuery.each({
 	remove: function( selector ) {
 		if ( !selector || jQuery.multiFilter( selector, [ this ] ).length ) {
 			if ( this.nodeType === 1 ) {
-				cleanData( this.getElementsByTagName("*") );
-				cleanData( [this] );
+				cleanData( jQuery("*", this).add(this) );
 			}
 
 			if ( this.parentNode ) {
@@ -199,7 +198,7 @@ jQuery.each({
 	empty: function() {
 		// Remove element nodes and prevent memory leaks
 		if ( this.nodeType === 1 ) {
-			cleanData( this.getElementsByTagName("*") );
+			cleanData( jQuery("*", this) );
 		}
 
 		// Remove any remaining nodes