createBoundTranscludeFn still has unused elementTransclusion argument

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I've been looking at AngularJS version 1.3.1 versus 1.3.0.rc1 and found this inconsistency.

The "createBoundTranscludeFn" function, defined under $get of the "$CompileProvider" function has a fourth argument (elementTransclusion) which is no longer used in version 1.3.1. However, this code:

        if (nodeLinkFn.transcludeOnThisElement) {
          childBoundTranscludeFn = createBoundTranscludeFn(
              scope, nodeLinkFn.transclude, parentBoundTranscludeFn,
              nodeLinkFn.elementTranscludeOnThisElement);

...in the "compositeLinkFn" function (at line 6945 of v1.3.1) is still passing that forth argument. Since it was used in version 1.3.0rc1, but that reference is gone in version 1.3.1, I assume the fourth argument is no longer being used. Just wanted to make sure that is what was intended as the final change.