audioflinger: Replace cpustats/CentralTendencyStatistics with audio_utils/Statistics

Revert CPU_FREQUENCY_STATISTICS macro in Configuration.h.

Test: build with different #define, dumpsys media.audio_flinger
Change-Id: I91680c462b069779d8db3b7a10603fb11a81a135
diff --git a/services/audioflinger/Configuration.h b/services/audioflinger/Configuration.h
index 64bb426..34cd821 100644
--- a/services/audioflinger/Configuration.h
+++ b/services/audioflinger/Configuration.h
@@ -27,7 +27,7 @@
 //#define AUDIO_WATCHDOG
 
 // uncomment to display CPU load adjusted for CPU frequency
-#define CPU_FREQUENCY_STATISTICS
+//define CPU_FREQUENCY_STATISTICS
 
 // uncomment to enable fast threads to take performance samples for later statistical analysis
 #define FAST_THREAD_STATISTICS