Move LayerHistoryV2 to LayerHistory

The old class LayerHistory (content detection v1) no longer exists
so LayerHisotryV2 can take its place.

Bug: 174120566
Test: presubmit
Change-Id: I84f33255b04ab082bbc5ae6e3ae4d7a793bfcd14
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 1e00577..a9e08fc 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -196,7 +196,7 @@
         const scheduler::RefreshRateConfigs& configs) {
     if (!configs.canSwitch()) return nullptr;
 
-    return std::make_unique<scheduler::impl::LayerHistoryV2>(configs);
+    return std::make_unique<scheduler::LayerHistory>(configs);
 }
 
 std::unique_ptr<VSyncSource> Scheduler::makePrimaryDispSyncSource(