Remove FenceTimelines

These are unused, but show up in simpleperf traces as fence time
queries.

Bug: 231762515
Test: bouncy ball
Change-Id: Ib83141bdaab90f56e35fde3c259887391d253a5e
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 47478f7..d93281b 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2415,27 +2415,22 @@
 
     const auto* display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked()).get();
 
-    getBE().mGlCompositionDoneTimeline.updateSignalTimes();
     std::shared_ptr<FenceTime> glCompositionDoneFenceTime;
     if (display && display->getCompositionDisplay()->getState().usesClientComposition) {
         glCompositionDoneFenceTime =
                 std::make_shared<FenceTime>(display->getCompositionDisplay()
                                                     ->getRenderSurface()
                                                     ->getClientTargetAcquireFence());
-        getBE().mGlCompositionDoneTimeline.push(glCompositionDoneFenceTime);
     } else {
         glCompositionDoneFenceTime = FenceTime::NO_FENCE;
     }
 
-    getBE().mDisplayTimeline.updateSignalTimes();
     mPreviousPresentFences[1] = mPreviousPresentFences[0];
     mPreviousPresentFences[0].fence =
             display ? getHwComposer().getPresentFence(display->getPhysicalId()) : Fence::NO_FENCE;
     mPreviousPresentFences[0].fenceTime =
             std::make_shared<FenceTime>(mPreviousPresentFences[0].fence);
 
-    getBE().mDisplayTimeline.push(mPreviousPresentFences[0].fenceTime);
-
     nsecs_t now = systemTime();
 
     // Set presentation information before calling Layer::releasePendingBuffer, such that jank
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index db5fd47..572dd58 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -166,9 +166,6 @@
 using DisplayColorSetting = compositionengine::OutputColorSetting;
 
 struct SurfaceFlingerBE {
-    FenceTimeline mGlCompositionDoneTimeline;
-    FenceTimeline mDisplayTimeline;
-
     // protected by mCompositorTimingLock;
     mutable std::mutex mCompositorTimingLock;
     CompositorTiming mCompositorTiming;