Reverts "[Impeller] Reland: Implement draw order optimization. (#54215)" (#54261)

Reverts: #54215
Initiated by: bdero
Reason for reverting: Causing golden diffs in framework roll https://flutter-gold.skia.org/search?issue=152633&crs=github&patchsets=2&corpus=flutter
Original PR Author: bdero

Reviewed By: {jonahwilliams}

This change reverts the following previous change:
Original PR: #54136
Revert PR: #54067

Includes fixes for issue seen in [these goldens](https://flutter-gold.skia.org/search?issue=152354&crs=github&patchsets=2&corpus=flutter).

The problem was that the scissor was ending up wrong after clip replay for opaque draws that are supposed to occur outside the parent clip scope(s).

To fix it, I made clip replay draws as well as the subpass texture draw apply lazily.
For the clip replay, there's no need to apply a given clip until we come across an entity that has a depth less than or equal to the clip.
And for the subpass texture (which is often translucent), we can defer drawing it until we come across another translucent draw. Deferring the subpass texture is important because if we draw it immediately, then all of the replay clips need to be drawn immediately too.

## Description
For each clip scope, draw opaque items in reverse order and translucent/backdrop-independent items in their original order afterwards. Clips are treated as translucent by the parent scope.

Respects clips, subpass collapse, and the clear color optimization.

### Local new_gallery before/after (iPhone 12 mini):
```
cd ~/projects/flutter/flutter/dev/integration_tests/new_gallery
flutter drive --profile --local-engine-src-path ~/projects/flutter/engine/src --local-engine=ios_profile --local-engine-host=host_profile_arm64 --trace-startup -t test_driver/transitions_perf.dart -d 00008101-000A59A93C10001E
```
![image](https://github.com/user-attachments/assets/7372c128-ca71-44a6-8e6c-b0043025f751)

Author: auto-submit[bot]

ci/licenses_golden/excluded_files

@@ -164,7 +164,6 @@
 ../../../flutter/impeller/entity/contents/host_buffer_unittests.cc
 ../../../flutter/impeller/entity/contents/test
 ../../../flutter/impeller/entity/contents/tiled_texture_contents_unittests.cc
-../../../flutter/impeller/entity/draw_order_resolver_unittests.cc
 ../../../flutter/impeller/entity/entity_pass_target_unittests.cc
 ../../../flutter/impeller/entity/entity_pass_unittests.cc
 ../../../flutter/impeller/entity/entity_unittests.cc

ci/licenses_golden/licenses_flutter

@@ -42128,8 +42128,6 @@ ORIGIN: ../../../flutter/impeller/entity/contents/tiled_texture_contents.cc + ..
 ORIGIN: ../../../flutter/impeller/entity/contents/tiled_texture_contents.h + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/impeller/entity/contents/vertices_contents.cc + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/impeller/entity/contents/vertices_contents.h + ../../../flutter/LICENSE
-ORIGIN: ../../../flutter/impeller/entity/draw_order_resolver.cc + ../../../flutter/LICENSE
-ORIGIN: ../../../flutter/impeller/entity/draw_order_resolver.h + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/impeller/entity/entity.cc + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/impeller/entity/entity.h + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/impeller/entity/entity_pass.cc + ../../../flutter/LICENSE
@@ -45011,8 +45009,6 @@ FILE: ../../../flutter/impeller/entity/contents/tiled_texture_contents.cc
 FILE: ../../../flutter/impeller/entity/contents/tiled_texture_contents.h
 FILE: ../../../flutter/impeller/entity/contents/vertices_contents.cc
 FILE: ../../../flutter/impeller/entity/contents/vertices_contents.h
-FILE: ../../../flutter/impeller/entity/draw_order_resolver.cc
-FILE: ../../../flutter/impeller/entity/draw_order_resolver.h
 FILE: ../../../flutter/impeller/entity/entity.cc
 FILE: ../../../flutter/impeller/entity/entity.h
 FILE: ../../../flutter/impeller/entity/entity_pass.cc

impeller/entity/BUILD.gn

@@ -166,8 +166,6 @@ impeller_component("entity") {
     "contents/tiled_texture_contents.h",
     "contents/vertices_contents.cc",
     "contents/vertices_contents.h",
-    "draw_order_resolver.cc",
-    "draw_order_resolver.h",
     "entity.cc",
     "entity.h",
     "entity_pass.cc",
@@ -250,7 +248,6 @@ impeller_component("entity_unittests") {
     "contents/filters/matrix_filter_contents_unittests.cc",
     "contents/host_buffer_unittests.cc",
     "contents/tiled_texture_contents_unittests.cc",
-    "draw_order_resolver_unittests.cc",
     "entity_pass_target_unittests.cc",
     "entity_pass_unittests.cc",
     "entity_playground.cc",

impeller/entity/contents/color_source_contents.h

@@ -213,11 +213,6 @@ class ColorSourceContents : public Contents {
     pass.SetVertexBuffer(std::move(geometry_result.vertex_buffer));
     options.primitive_type = geometry_result.type;
 
-    // Enable depth writing for all opaque entities in order to allow
-    // reordering. Opaque entities are coerced to source blending by
-    // `EntityPass::AddEntity`.
-    options.depth_write_enabled = options.blend_mode == BlendMode::kSource;
-
     // Take the pre-populated vertex shader uniform struct and set managed
     // values.
     frame_info.mvp = geometry_result.transform;

impeller/entity/contents/filters/gaussian_blur_filter_contents.cc

@@ -575,16 +575,16 @@ Entity ApplyBlurStyle(FilterContents::BlurStyle blur_style,
                   const ContentContext& renderer, const Entity& entity,
                   RenderPass& pass) mutable {
                 bool result = true;
+                blur_entity.SetClipDepth(entity.GetClipDepth());
+                blur_entity.SetTransform(entity.GetTransform() *
+                                         blurred_transform);
+                result = result && blur_entity.Render(renderer, pass);
                 snapshot_entity.SetTransform(
                     entity.GetTransform() *
                     Matrix::MakeScale(1.f / source_space_scalar) *
                     snapshot_transform);
                 snapshot_entity.SetClipDepth(entity.GetClipDepth());
                 result = result && snapshot_entity.Render(renderer, pass);
-                blur_entity.SetClipDepth(entity.GetClipDepth());
-                blur_entity.SetTransform(entity.GetTransform() *
-                                         blurred_transform);
-                result = result && blur_entity.Render(renderer, pass);
                 return result;
               }),
           fml::MakeCopyable([blur_entity = blur_entity.Clone(),

impeller/entity/contents/texture_contents.cc

@@ -153,9 +153,6 @@ bool TextureContents::Render(const ContentContext& renderer,
   }
   pipeline_options.primitive_type = PrimitiveType::kTriangleStrip;
 
-  pipeline_options.depth_write_enabled =
-      stencil_enabled_ && pipeline_options.blend_mode == BlendMode::kSource;
-
   pass.SetPipeline(strict_source_rect_enabled_
                        ? renderer.GetTextureStrictSrcPipeline(pipeline_options)
                        : renderer.GetTexturePipeline(pipeline_options));