Revert "log stack trace when finish() or onDestroy() is called"

We are already clear on why it's happening (phantom touches) so reverting this log.

This reverts commit 0882eb0

Author: guang-google

tests/DumpRenderTree/src/com/android/dumprendertree/TestShellActivity.java

@@ -286,23 +286,11 @@ protected void onStop() {
         mWebView.stopLoading();
     }
 
-
-    //TODO: remove. this is temporary for bug investigation
-    @Override
-    public void finish() {
-      Exception e = new Exception("finish() call stack");
-      Log.d(LOGTAG, "finish stack trace", e);
-      super.finish();
-    }
-
     @Override
     protected void onDestroy() {
-        //TODO: remove exception log. this is temporary for bug investigation
-        Exception e = new Exception("onDestroy stack trace");
-        Log.d(LOGTAG, "onDestroy stack trace", e);
+        super.onDestroy();
         mWebView.destroy();
         mWebView = null;
-        super.onDestroy();
     }
 
     @Override