drm/amd/powerplay: drop redundant BIF doorbell interrupt operations

This is already done in soc15.c. And this is really ASIC specific
and should not be placed here.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2020-03-27 15:05:09 +08:00 • committed by Alex Deucher
commit e4295adc84