Depsgraph: Remove workaround for Blender Internal in viewport

This commit effectively reverts fix T45702 done in 067fe2719a99.

Reasoning:

- Blender Internal is being replaced with Eevee, and will be removed entirely
  rather soon.

- All render engines are planned to have own depsgraph, so such threading
  conflicts should no longer be an issue.

- We don't want to spend time on porting workarounds for EOL things to a new
  design. Less code -- faster the work :)

- If such notifications will end up needed for some other cases, we would
  need to re-implement this a more proper depsgraph tagging/flushing and make
  it to work with all copy-on-write datablocks and everything.

1 files changed, 1 insertions, 5 deletions

diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index 7fa7aa71eae..a345a273cac 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -1562,11 +1562,7 @@ void BKE_scene_graph_update_for_newframe(EvaluationContext *eval_ctx,
 	 * for example, clearing update tags from bmain.
 	 */
 	const float ctime = BKE_scene_frame_get(scene);
-	/* Inform editors we are starting scene update. */
-	DEG_editors_update_pre(bmain, scene, true);
-	/* Keep this first.
-	 * TODO(sergey): Should it be after the editors update?
-	 */
+	/* Keep this first. */
 	BLI_callback_exec(bmain, &scene->id, BLI_CB_EVT_FRAME_CHANGE_PRE);
 	/* Update animated image textures for particles, modifiers, gpu, etc,
 	 * call this at the start so modifiers with textures don't lag 1 frame.