drm/amd/display: Don't call amdgpu_dm_display_resume as it doesn't exist

amdgpu_dm_display_resume was merged into dm_resume.
No need to call these functions separately.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -1629,7 +1629,6 @@ static ssize_t s3_debug_store(struct device *device,
 	if (ret == 0) {
 		if (s3_state) {
 			dm_resume(adev);
-			amdgpu_dm_display_resume(adev);
 			drm_kms_helper_hotplug_event(adev->ddev);
 		} else
 			dm_suspend(adev);