diff --git a/common/Native/native.js b/common/Native/native.js
index ab4b1f5e44..9562151ffb 100755
--- a/common/Native/native.js
+++ b/common/Native/native.js
@@ -341,43 +341,3 @@ var performance = window.performance = (function(){
 		now : function() { return Date.now() - basePerformanceOffset; }
 	};
 })();
-
-(function(window, undefined){
-	function ZLib()
-	{
-		/** @suppress {checkVars} */
-		this.engine = CreateNativeZip();
-		this.files = {};
-	}
-	ZLib.prototype.isModuleInit = true;
-	ZLib.prototype.open = function(buf)
-	{
-		return this.engine.open((undefined !== buf.byteLength) ? new Uint8Array(buf) : buf);
-	};
-	ZLib.prototype.create = function()
-	{
-		return this.engine.create();
-	};
-	ZLib.prototype.save = function()
-	{
-		return this.engine.save();
-	};
-	ZLib.prototype.getFile = function(path)
-	{
-		return this.engine.getFile(path);
-	};
-	ZLib.prototype.addFile = function(path, data)
-	{
-		return this.engine.addFile(path, (undefined !== data.byteLength) ? new Uint8Array(data) : data);
-	};
-	ZLib.prototype.removeFile = function(path)
-	{
-		return this.engine.removeFile(path);
-	};
-	ZLib.prototype.close = function()
-	{
-		return this.engine.close();
-	};
-
-	window.nativeZlibEngine = new ZLib();
-})(window, undefined);