Revert "drm/amdkfd: support concurrent userptr update for HMM"

This reverts commit 386a68e786.

This depends on an HMM fix which is not upstream yet.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2019-03-28 10:14:33 -05:00
commit 96aa5bfa09