Revert^2 "Second Patch for async RenderEngine"

Keep the change of Second Patch for async RenderEngine and fix the
regression

- remove the vector variables which is to store futureFence locally in
BufferStateLayer to get avoid fd leaking
- screenshots initiated from the app don't wait on the SF main thread.

2109270e74a18585aceffc94d1758cee47bb4175

Bug: 202843200
Bug: 202833127
Bug: 202808760
Test: Wembley PIN setting test, NexusLauncherOutOfProcTests
Change-Id: I87847d01e2e330ddec88272cd8608f0b78c0a2cd
diff --git a/services/surfaceflinger/BufferStateLayer.h b/services/surfaceflinger/BufferStateLayer.h
index 87b68ea..eea700c 100644
--- a/services/surfaceflinger/BufferStateLayer.h
+++ b/services/surfaceflinger/BufferStateLayer.h
@@ -39,7 +39,9 @@
     // Implements Layer.
     const char* getType() const override { return "BufferStateLayer"; }
 
-    void onLayerDisplayed(const sp<Fence>& releaseFence) override;
+    void onLayerDisplayed(
+            std::shared_future<renderengine::RenderEngineResult> futureRenderEngineResult) override;
+
     void releasePendingBuffer(nsecs_t dequeueReadyTime) override;
 
     void finalizeFrameEventHistory(const std::shared_ptr<FenceTime>& glDoneFence,
@@ -115,8 +117,6 @@
     bool updateFrameEventHistory(const sp<Fence>& acquireFence, nsecs_t postedTime,
                                  nsecs_t requestedPresentTime);
 
-    status_t addReleaseFence(const sp<CallbackHandle>& ch, const sp<Fence>& releaseFence);
-
     bool latchSidebandStream(bool& recomputeVisibleRegions) override;
 
     bool hasFrameUpdate() const override;
@@ -139,7 +139,6 @@
     std::shared_ptr<renderengine::ExternalTexture> getBufferFromBufferData(
             const BufferData& bufferData);
 
-    sp<Fence> mPreviousReleaseFence;
     ReleaseCallbackId mPreviousReleaseCallbackId = ReleaseCallbackId::INVALID_ID;
     uint64_t mPreviousReleasedFrameNumber = 0;