Revert "drm/amdgpu: support userptr cross VMAs case with HMM"

This reverts commit 5aeaccca30.

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 10:14:03 -05:00
commit ac83d0ff9c