Revert "SurfaceFlinger: send VSYNC power hints to IPowerManager"

This reverts commit d469a1c3285b974cf2637517cc25727da8f82668.
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 8141b99..0834c80 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -96,8 +96,7 @@
 	libGLESv2 \
 	libbinder \
 	libui \
-	libgui \
-	libpowermanager
+	libgui
 
 LOCAL_MODULE:= libsurfaceflinger