Revert "msm: sde: rotator: Enable traffic shaper for 4k@60fps layer"

This reverts commit 7d6f012e.
Traffic shaper is not required for 60fps 4k video. OT settings
will take care of this.

Change-Id: Id6e65da102c7fa43cf215129643c7a54e6a72085
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>