Revert "drm/amdgpu: use dirty framebuffer helper"

This reverts commit 66f99628.

Unfortunately, that commit causes performance regressions on non-PSR
setups. So, just revert it until FB_DAMAGE_CLIPS support can be added.

Cc: stable@vger.kernel.org
Link: drm/amd#2189
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216554


Fixes: 66f99628 ("drm/amdgpu: use dirty framebuffer helper")
Fixes: abbc7a3d ("drm/amdgpu: don't register a dirty callback for non-atomic")
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>