drm/amd/pp: delete repeated call of force_dpm_level

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>
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 9d3bdad..fa9d161 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -389,20 +389,12 @@ static int pp_dpm_force_performance_level(void *handle,
 	if (level == hwmgr->dpm_level)
 		return 0;
 
-	if (hwmgr->hwmgr_func->force_dpm_level == NULL) {
-		pr_info("%s was not implemented.\n", __func__);
-		return 0;
-	}
-
 	mutex_lock(&pp_handle->pp_lock);
 	pp_dpm_en_umd_pstate(hwmgr, &level);
 	hwmgr->request_dpm_level = level;
 	hwmgr_handle_task(pp_handle, AMD_PP_TASK_READJUST_POWER_STATE, NULL, NULL);
-	ret = hwmgr->hwmgr_func->force_dpm_level(hwmgr, level);
-	if (!ret)
-		hwmgr->dpm_level = hwmgr->request_dpm_level;
-
 	mutex_unlock(&pp_handle->pp_lock);
+
 	return 0;
 }