SF: Inline SurfaceFlinger::initializeDisplays

Bug: 150889228
Test: Boot
Change-Id: I92d42042196f5c67fc61b423853cc205aac81e97
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 3593deb..ae783bf 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -856,8 +856,7 @@
      */
 
     // Called during boot, and restart after system_server death.
-    void initializeDisplays();
-    void onInitializeDisplays() REQUIRES(kMainThreadContext);
+    void initializeDisplays() REQUIRES(kMainThreadContext);
 
     sp<const DisplayDevice> getDisplayDeviceLocked(const wp<IBinder>& displayToken) const
             REQUIRES(mStateLock) {