Get rid of goog.functions

src/ol/render/webgl/webglreplay.js

@@ -2,7 +2,6 @@ goog.provide('ol.render.webgl.ImageReplay');
 goog.provide('ol.render.webgl.ReplayGroup');
 
 goog.require('goog.asserts');
-goog.require('goog.functions');
 goog.require('goog.vec.Mat4');
 goog.require('ol.extent');
 goog.require('ol.object');
@@ -954,7 +953,14 @@ ol.render.webgl.ReplayGroup.prototype.getDeleteResourcesFunction = function(cont
     functions.push(
         this.replays_[replayKey].getDeleteResourcesFunction(context));
   }
-  return goog.functions.sequence.apply(null, functions);
+  return function() {
+    var length = functions.length;
+    var result;
+    for (var i = 0; i < length; i++) {
+      result = functions[i].apply(this, arguments);
+    }
+    return result;
+  };
 };