Removed last references to old sync points.

gpu/command_buffer/tests/gl_manager.cc

Index: gpu/command_buffer/tests/gl_manager.cc
diff --git a/gpu/command_buffer/tests/gl_manager.cc b/gpu/command_buffer/tests/gl_manager.cc
index 812d8fd505e668e5b77066eafa5db46cb904cac3..9266431591cbd9ffed5310fdfa3b8c909eb851ad 100644
--- a/gpu/command_buffer/tests/gl_manager.cc
+++ b/gpu/command_buffer/tests/gl_manager.cc
@@ -484,25 +484,6 @@ void GLManager::DestroyImage(int32_t id) {
   image_manager->RemoveImage(id);
 }
 
-uint32_t GLManager::InsertSyncPoint() {
-  NOTIMPLEMENTED();
-  return 0u;
-}
-
-uint32_t GLManager::InsertFutureSyncPoint() {
-  NOTIMPLEMENTED();
-  return 0u;
-}
-
-void GLManager::RetireSyncPoint(uint32_t sync_point) {
-  NOTIMPLEMENTED();
-}
-
-void GLManager::SignalSyncPoint(uint32_t sync_point,
-                                const base::Closure& callback) {
-  NOTIMPLEMENTED();
-}
-
 void GLManager::SignalQuery(uint32_t query, const base::Closure& callback) {
   NOTIMPLEMENTED();
 }