Ajax: Remove remnants of the load event alias handling

(cherry-picked from 38a669735d08bcbd28cfb0d77eee82c67aa89eeb)

Refs 0705be475092aede1eddae01319ec931fb9c65fc
Refs gh-2287
Closes gh-2362

src/ajax/load.js

@@ -4,22 +4,13 @@ define([
 	"../ajax",
 	"../traversing",
 	"../manipulation",
-	"../selector",
-	// Optional event/alias dependency
-	"../event/alias"
+	"../selector"
 ], function( jQuery ) {
 
-// Keep a copy of the old load method
-var _load = jQuery.fn.load;
-
 /**
  * Load a url into a page
  */
 jQuery.fn.load = function( url, params, callback ) {
-	if ( typeof url !== "string" && _load ) {
-		return _load.apply( this, arguments );
-	}
-
 	var selector, response, type,
 		self = this,
 		off = url.indexOf(" ");