android: Remove LocalBroadcastManager

This causes a couple of minor changes to directory initialization. We don't have a lengthy initialization step so we could spend less time creating state receivers and just run initialization on the main thread. We also don't have a situation where external storage will be a concern so checks are removed in favor of a binary check to see if initialization is ready.

This additionally removes the unused DoFrame callback.

src/android/app/src/main/jni/native.cpp

@@ -367,8 +367,6 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_SurfaceDestroyed(JNIEnv* env,
     EmulationSession::GetInstance().SurfaceChanged();
 }
 
-void Java_org_yuzu_yuzu_1emu_NativeLibrary_DoFrame(JNIEnv* env, [[maybe_unused]] jclass clazz) {}
-
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_NotifyOrientationChange(JNIEnv* env,
                                                                    [[maybe_unused]] jclass clazz,
                                                                    jint layout_option,