Removed check to prevent event from being fixed twice. Unfortunately, in IE...

Removed check to prevent event from being fixed twice. Unfortunately, in IE this is sometimes necessary with its global event object. Binding both a mousedown and mousemove event is an example.

src/event.js

@@ -263,18 +263,11 @@ jQuery.event = {
 	},
 
 	fix: function(event) {
-		// Short-circuit if the event has already been fixed by jQuery.event.fix
-		if ( event[ expando ] )
-			return event;
-			
 		// store a copy of the original event object 
 		// and clone to set read-only properties
 		var originalEvent = event;
 		event = jQuery.extend({}, originalEvent);
 		
-		// Mark the event as fixed by jQuery.event.fix
-		event[ expando ] = true;
-		
 		// add preventDefault and stopPropagation since 
 		// they will not work on the clone
 		event.preventDefault = function() {