Simplify jQuery.expando

src/manipulation.js

@@ -502,7 +502,6 @@ jQuery.extend({
 			i = 0,
 			internalKey = jQuery.expando,
 			cache = jQuery.cache,
-			deleteExpando = jQuery.support.deleteExpando,
 			special = jQuery.event.special;
 
 		for ( ; (elem = elems[ i ]) != null; i++ ) {
@@ -513,37 +512,20 @@ jQuery.extend({
 				data = id && cache[ id ];
 
 				if ( data ) {
-					if ( data.events ) {
-						for ( type in data.events ) {
-							if ( special[ type ] ) {
-								jQuery.event.remove( elem, type );
+					for ( type in data.events ) {
+						if ( special[ type ] ) {
+							jQuery.event.remove( elem, type );
 
-							// This is a shortcut to avoid jQuery.event.remove's overhead
-							} else {
-								jQuery.removeEvent( elem, type, data.handle );
-							}
+						// This is a shortcut to avoid jQuery.event.remove's overhead
+						} else {
+							jQuery.removeEvent( elem, type, data.handle );
 						}
 					}
 
 					// Remove cache only if it was not already removed by jQuery.event.remove
 					if ( cache[ id ] ) {
-
 						delete cache[ id ];
-
-						// IE does not allow us to delete expando properties from nodes,
-						// nor does it have a removeAttribute function on Document nodes;
-						// we must handle all of these cases
-						if ( deleteExpando ) {
-							delete elem[ internalKey ];
-
-						} else if ( elem.removeAttribute ) {
-							elem.removeAttribute( internalKey );
-
-						} else {
-							elem[ internalKey ] = null;
-						}
-
-						core_deletedIds.push( id );
+						delete elem[ internalKey ];
 					}
 				}
 			}