SF: Deprecate content detection v1

Remove the code for the old content detection algorithm,
which is no longer used.

Bug: 174120566
Test: presubmit
Change-Id: I0828bcb886f32ec2ebc896848b72340862613100
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 509858a..895c6b3 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -69,8 +69,7 @@
         }
     } mExpectDisableVsync{mSchedulerCallback};
 
-    static constexpr bool kUseContentDetectionV2 = false;
-    TestableScheduler mScheduler{mConfigs, mSchedulerCallback, kUseContentDetectionV2};
+    TestableScheduler mScheduler{mConfigs, mSchedulerCallback};
 
     Scheduler::ConnectionHandle mConnectionHandle;
     mock::EventThread* mEventThread;