Fix #12329. Remove leftover jQuery.bindReady reference.

jQuery.ready already fires "ready" event properly, the undefined reference had no effect.

src/event.js

@@ -539,11 +539,6 @@ jQuery.event = {
 	},
 
 	special: {
-		ready: {
-			// Make sure the ready event is setup
-			setup: jQuery.bindReady
-		},
-
 		load: {
 			// Prevent triggered image.load events from bubbling to window.load
 			noBubble: true