removed no longer required helper method

js/reveal.js

@@ -645,13 +645,6 @@ var Reveal = (function(){
 
 	}
 
-	/**
-	 * Returns last element of an array
-	 */
-	function lastElem(array) {
-		return array.slice(-1)[0];
-	}
-
 	/**
 	 * Applies JavaScript-controlled layout rules to the
 	 * presentation.

js/reveal.min.js

@@ -1,5 +1,5 @@
 /*!
- * reveal.js 2.4.0 (2013-04-06, 13:16)
+ * reveal.js 2.4.0 (2013-04-06, 18:00)
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  *