remove old files

src/deferred.js

@@ -1,14 +0,0 @@
-(function() {
-	window.deferred = function() {
-		var d = {};
-		var promise = new Promise(function(resolve, reject) {
-			d.resolve = resolve;
-			d.reject = reject;
-		});
-
-		// Add the native promise as a key on deferred object.
-		d.promise = promise;
-		// Also move all props/methods of native promise on the deferred obj.
-		return Object.assign(d, promise);
-	};
-})();