Remove unused dependencies in SurfaceFlinger

* Remove libsync from libcompositionengine
* Remove libvr_manager from libsurfaceflinger
* Remove libdl from libsurfaceflinger

Test: m -j
Bug: 156932275
Change-Id: Id4b267c2aa2f902484c683219b4794d934b03901
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 0182937..a790d0b 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -38,7 +38,6 @@
         "libbinder",
         "libbufferhubqueue",
         "libcutils",
-        "libdl",
         "libEGL",
         "libfmq",
         "libGLESv1_CM",
@@ -73,7 +72,6 @@
         "librenderengine",
         "libserviceutils",
         "libtrace_proto",
-        "libvr_manager",
         "libvrflinger",
     ],
     header_libs: [
diff --git a/services/surfaceflinger/CompositionEngine/Android.bp b/services/surfaceflinger/CompositionEngine/Android.bp
index fda451b..b3b9fe5 100644
--- a/services/surfaceflinger/CompositionEngine/Android.bp
+++ b/services/surfaceflinger/CompositionEngine/Android.bp
@@ -21,7 +21,6 @@
         "liblog",
         "libnativewindow",
         "libprotobuf-cpp-lite",
-        "libsync",
         "libtimestats",
         "libui",
         "libutils",
diff --git a/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp b/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp
index 660baff..4084653 100644
--- a/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp
@@ -28,7 +28,6 @@
 
 #include <log/log.h>
 #include <renderengine/RenderEngine.h>
-#include <sync/sync.h>
 #include <system/window.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/Rect.h>