drm/amdgpu: drop mem_global_referenced

Not used any more.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2020-10-19 14:18:19 +02:00 • committed by Alex Deucher
commit 923e15d634