drm/amd/powerplay: remove uncessary extra gfxoff control call

Gfxoff is already enabled in amdgpu_device_ip_set_powergating_state.
So, no need to enable it again in pp_late_init.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amd_powerplay.c

@@ -180,7 +180,6 @@ static int pp_late_init(void *handle)
 {
 	struct amdgpu_device *adev = handle;
 	struct pp_hwmgr *hwmgr = adev->powerplay.pp_handle;
-	int ret;
 
 	if (hwmgr && hwmgr->pm_en) {
 		mutex_lock(&hwmgr->smu_lock);
@@ -191,14 +190,6 @@ static int pp_late_init(void *handle)
 	if (adev->pm.smu_prv_buffer_size != 0)
 		pp_reserve_vram_for_smu(adev);
 
-	if (hwmgr && hwmgr->hwmgr_func &&
-	    hwmgr->hwmgr_func->gfx_off_control &&
-	    (hwmgr->feature_mask & PP_GFXOFF_MASK)) {
-		ret = hwmgr->hwmgr_func->gfx_off_control(hwmgr, true);
-		if (ret)
-			pr_err("gfx off enabling failed!\n");
-	}
-
 	return 0;
 }