drm/amd/display: Fix memoryleak during S3 resume.

Do not create dc_state within display_resume, since it's being
constructed within atomic check.
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NLeo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

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

@@ -694,10 +694,6 @@ int amdgpu_dm_display_resume(struct amdgpu_device *adev)
 	WARN_ON(kref_read(&cached_state->context->refcount) > 1);
 	dc_release_state(cached_state->context);
 
-	cached_state->context = dc_create_state();
-	ASSERT(cached_state->context);
-	dc_resource_state_copy_construct_current(adev->dm.dc, cached_state->context);
-
 	for_each_new_crtc_in_state(adev->dm.cached_state, crtc, new_crtc_state, i) {
 		dm_crtc_state = to_dm_crtc_state(new_crtc_state);
 		if (dm_crtc_state->stream) {