Revert "video: msm: Workaround an MDP crash on 8660  * If an impossibly high clock rate is needed while composing with MDP,    the hardware will lock up when BLT mode is used.  * Reproducible on the Galaxy Note by long-pressing power while the    camera preview is running.  * Just fail the overlay set so that userspace switches to GPU."

This reverts commit 5cd72d69255aebb90fc430086132637fdf0c4226.