Revert "drm/msm/sde: add driver for sde support"

This reverts 'commit 54a4a3fb ("drm/msm/sde: add
driver for sde support")'
This is partial change for display drm driver,
that will break drm/sde merge commit.

Change-Id: Iea6b08608a30979232826efba8fbb2a631d93f83
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>