Revert "msm: mdss: Handle fb_release_all before cont-splash handoff"

This reverts commit 1313beec ("msm: mdss:
Handle fb_release_all before cont-splash handoff"). This commit causes
continuous underruns, revert it until root caused.

Change-Id: I0d655360b5bc312211585743ea2d4dbcada34988
Signed-off-by: Krishna Chaitanya Devarakonda <kdevarak@codeaurora.org>