Set clang-format RemoveSemicolon rule to true

- Set clang-format `Standard` rule to `c++20`

modules/theora/video_stream_theora.cpp

@@ -645,7 +645,7 @@ VideoStreamPlaybackTheora::~VideoStreamPlaybackTheora() {
 	memdelete(thread_sem);
 #endif
 	clear();
-};
+}
 
 void VideoStreamTheora::_bind_methods() {}