drm/msm: Remove unused freed llist node

Unused since commit c951a9b2 ("drm/msm: Remove msm_gem_free_work")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20210401012722.527712-2-robdclark@gmail.comSigned-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/msm_gem.h

@@ -78,8 +78,6 @@ struct msm_gem_object {
 
 	struct list_head vmas;    /* list of msm_gem_vma */
 
-	struct llist_node freed;
-
 	/* For physically contiguous buffers.  Used when we don't have
 	 * an IOMMU.  Also used for stolen/splashscreen buffer.
 	 */