Merge pull request phaserjs#2894 from tfelix/master

removeTextureAtlas now deletes the correct cache object.

Author: photonstorm

v2-community/src/loader/Cache.js

@@ -1987,7 +1987,7 @@ Phaser.Cache.prototype = {
     */
     removeTextureAtlas: function (key) {
 
-        delete this._cache.atlas[key];
+        delete this._cache.image[key];
 
     },