message: Remove unnecessary using.
diff: @@ -63,9 +63,6 @@ using namespace utils;
  namespace filament {
  using namespace driver;
  -using PFNEGLGETNATIVECLIENTBUFFERANDROIDPROC =
  - EGLClientBuffer(EGLAPIENTRYP)(const AHardwareBuffer* buffer);
  -
  // The Android NDK doesn't exposes extensions, fake it with eglGetProcAddress
  namespace glext {
  UTILS_PRIVATE PFNEGLCREATESYNCKHRPROC eglCreateSyncKHR;
  