Remove $("body") case; $(document.body) is 2x faster.

src/core.js

@@ -90,15 +90,6 @@ jQuery.fn = jQuery.prototype = {
 			return this;
 		}
 
-		// The body element only exists once, optimize finding it
-		if ( selector === "body" && !context && document.body ) {
-			this.context = document;
-			this[0] = document.body;
-			this.selector = selector;
-			this.length = 1;
-			return this;
-		}
-
 		// Handle HTML strings
 		if ( typeof selector === "string" ) {
 			// Are we dealing with HTML string or an ID?

sizzle @ feebbd7e

-Subproject commit 912a8218c36f6136d694a0915eb92bdf3e7b5e41
+Subproject commit feebbd7e053bff426444c7b348c776c99c7490ee