Revert "msm: mdp: Update sync pt. behaviour"

This reverts commit a05a8b44bf1685ac55e204c9d97ec360a5dc1a80.

This eliminates the "msmfb_handle_buf_sync_ioctl:copy_to_user failed" error.
Revert "msm: mdp: Change msmfb kworker to kthread"

This reverts commit f10a3c629498f57127cfb8af617032dd1ad1abcf.

tilal6991 said so.
Revert "msm: display: command mode panel release fence"

This reverts commit de6ff579a6555f17a534551e28a4a4658c02b05f.

CAF is funky on d2 devices.