Remove old API from WebLeakDetector.

There is no users of it on either Blink or Chromium. This fixes the
FIXME in WebLeakDetector.h.

BUG=None
TEST=None
R=tkent@chromium.org

Review URL: https://codereview.chromium.org/428473002

git-svn-id: svn://svn.chromium.org/blink/trunk@179002 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/public/web/WebLeakDetector.h

@@ -55,9 +55,6 @@ public:
     // Cleans up the DOM objects and counts them. |WebLeakDetectorClient::onLeakDetectionComplete()| is called when done.
     // This is supposed to be used for detecting DOM-object leaks.
     virtual void collectGarbageAndGetDOMCounts(WebLocalFrame*) = 0;
-
-    // FIXME: old API to be removed.
-    static void collectGarbargeAndGetDOMCounts(WebLocalFrame*, unsigned*, unsigned*) { }
 };
 
 } // namespace blink