drm/amd/powerplay: delete duplicate code in smu7_hwmgr.c

Voltage Controller have been enabled (SMC message)
before ULV enablement.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 file changed