surfaceflinger: Work around aliasing violations

Change-Id: I22e758390c1312e60bb4adac2365be201ba6f161
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
Revert "surfaceflinger: Work around aliasing violations"

This reverts commit e6990517cba7d2ed31bb2729534cec55e6dca713.