Revert "CHROMIUM: dma-buf: dma-fence: fix warning when releasing

active sync point"

This reverts commit df9d8c41.

The warning fixed by the above commit is no more present in
kernel.

Change-Id: I1fa1dd69a033b13b92c4f99d5afbc881d848d645
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>