Revert "drm: Initialize struct drm_crtc_state.no_vblank from device settings"

This reverts commit 2a8bb9dc.

It breaks the Android kernel api and was added only because of a tiny
drm driver bugfix for an issue that can not ever really be hit, so it is
safe to revert.

Bug: 161946584
Change-Id: Iaf1a6bca2d36fef1626157fd165a224b011cdcca
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>