Remove scene viewport postprocess API from engine

editor/src/Viewport/ViewportHostRenderFlowUtils.h

@@ -115,11 +115,6 @@ inline ViewportRenderFallbackPolicy BuildGameViewportRenderFailurePolicy(
     return policy;
 }
 
-struct SceneViewportBuiltinPostProcessBuildResult {
-    Rendering::BuiltinPostProcessRequest request = {};
-    const char* warningStatusText = nullptr;
-};
-
 inline Rendering::Passes::InfiniteGridPassData BuildSceneViewportGridPassData(
     const SceneViewportOverlayData& overlay) {
     Rendering::Passes::InfiniteGridPassData data = {};
@@ -144,50 +139,19 @@ inline Rendering::Passes::ObjectIdOutlineStyle BuildSceneViewportSelectionOutlin
     return style;
 }
 
-inline SceneViewportBuiltinPostProcessBuildResult BuildSceneViewportBuiltinPostProcess(
-    const SceneViewportOverlayData& overlay,
-    const std::vector<uint64_t>& selectedObjectIds,
-    bool hasObjectIdShaderView,
-    bool debugSelectionMask = false) {
-    SceneViewportBuiltinPostProcessBuildResult result = {};
-    if (!overlay.valid) {
-        return result;
-    }
-
-    result.request.gridPassData = BuildSceneViewportGridPassData(overlay);
-    result.request.selectedObjectIds = selectedObjectIds;
-    result.request.outlineStyle = BuildSceneViewportSelectionOutlineStyle(debugSelectionMask);
-
-    if (!selectedObjectIds.empty() &&
-        !debugSelectionMask &&
-        !hasObjectIdShaderView) {
-        result.warningStatusText = "Scene object id shader view is unavailable";
-    }
-
-    return result;
-}
-
 inline void ApplySceneViewportRenderRequestSetup(
     const ViewportRenderTargets& targets,
-    const Rendering::BuiltinPostProcessRequest* builtinPostProcess,
     Rendering::RenderPassSequence* postPasses,
     Rendering::CameraRenderRequest& request) {
     request.preScenePasses = nullptr;
     request.postScenePasses = nullptr;
     request.overlayPasses = nullptr;
     request.objectId = {};
-    request.builtinPostProcess = {};
 
     if (postPasses != nullptr && postPasses->GetPassCount() > 0) {
         request.postScenePasses = postPasses;
     }
 
-    if (builtinPostProcess != nullptr &&
-        builtinPostProcess->IsRequested()) {
-        request.builtinPostProcess = *builtinPostProcess;
-        request.builtinPostProcess.objectIdTextureView = targets.objectIdShaderView;
-    }
-
     if (targets.objectIdView == nullptr) {
         return;
     }