drm/amd/powerplay: drop unnecessary Sienna Cichlid specific APIs

As a common performance level setting API is used. Then these
ASIC specific APIs are not needed any more.

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 2020-07-02 11:32:58 +08:00 • committed by Alex Deucher
commit b2785e250f