Remove commented out code

src/position.js

@@ -910,46 +910,3 @@ Chess.Position.prototype.unmakeMove = function() {
 
 	return move;
 };
-
-/*
-function test() {
-	var cache = new Array(1000000);
-	var collisions = 0;
-	var hits = 0;
-
-	function perft(depth, chessPosition) {
-		if (!depth) {
-			return 1;
-		}
-
-		var zobrist = chessPosition.hashKey;
-		var hashKey = zobrist.getHashKey();
-
-		if (cache[hashKey % cache.length]) {
-			if (cache[hashKey % cache.length].zobrist.isEqual(zobrist)) {
-				++hits;
-				return cache[hashKey % cache.length].nodes;
-			}
-			++collisions;
-		}
-
-		var nodes = 0;
-
-		chessPosition.getMoves(true).forEach(function(move) {
-			if (chessPosition.makeMove(move)) {
-				nodes += perft(depth - 1, chessPosition);
-				chessPosition.unmakeMove();
-			}
-		});
-
-		cache[hashKey % cache.length] = { zobrist: zobrist.dup(), nodes: nodes };
-
-		return nodes;
-	}
-
-	window.console.log("Perft: " + perft(4, new Chess.Position));
-	window.console.log("Hits: " + hits + ", collisions: " + collisions);
-};
-
-test();
-*/