Revert "drm/amd/pp: Add a pp feature mask bit for AutoWattman feature"

This reverts commit e429ea87b2939c4cce1b439baf6d76535a0767f2.

Implement Workload Aware Dynamic power management instand of
AutoWattman feature in linux.

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

drivers/gpu/drm/amd/powerplay/inc/hwmgr.h

@@ -85,7 +85,6 @@ enum PP_FEATURE_MASK {
 	PP_SOCCLK_DPM_MASK = 0x1000,
 	PP_DCEFCLK_DPM_MASK = 0x2000,
 	PP_OVERDRIVE_MASK = 0x4000,
-	PP_AUTOWATTMAN_MASK = 0x8000,
 };
 
 enum PHM_BackEnd_Magic {