message: don't attempt to call Android private APIs
  This used to be tolerated, but no more with recent versions of android.
diff: @@ -66,15 +66,10 @@ JNIEnv* ExternalStreamManagerAndroid::getEnvironmentSlow() noexcept {
  JNIEnv * env = mVm.getEnvironment();
  mJniEnv = env;
  - // we try to call directly the native version of updateTexImage() -- it's not 100% portable
  - // but we mitigate this by falling back on the correct method if we don't find it.
  jclass SurfaceTextureClass = env->FindClass("android/graphics/SurfaceTexture");
  - mSurfaceTextureClass_updateTexImage = env->GetMethodID(
  - SurfaceTextureClass, "nativeUpdateTexImage", "()V");
  - if (!mSurfaceTextureClass_updateTexImage) {
  +
  mSurfaceTextureClass_updateTexImage = env->GetMethodID(
  SurfaceTextureClass, "updateTexImage", "()V");
  - }
  mSurfaceTextureClass_attachToGLContext = env->GetMethodID(
  SurfaceTextureClass, "attachToGLContext", "(I)V");
  