[Common UI] Remove unused variable

...from mct-splitter directive.

platform/commonUI/general/src/directives/MCTSplitter.js

@@ -44,8 +44,7 @@ define(
          */
         function MCTSplitter() {
             function link(scope, element, attrs, mctSplitPane) {
-                var initialPosition,
+                var initialPosition;
-                    activeInterval;
 
                 element.addClass("splitter");