refactor(streamer): remove gstreamer and legacy rtmp paths

include/cvmmap_streamer/config/runtime_config.hpp

@@ -22,19 +22,16 @@ enum class RunMode {
 
 enum class RtmpMode {
 	Enhanced,
-	Domestic,
 };
 
 enum class RtmpTransportType {
 	Libavformat,
 	FfmpegProcess,
-	LegacyCustom,
 };
 
 enum class EncoderBackendType {
 	Auto,
 	FFmpeg,
-	GStreamerLegacy,
 };
 
 enum class EncoderDeviceType {
@@ -66,7 +63,6 @@ struct RtmpOutputConfig {
 	std::vector<std::string> urls{};
 	RtmpTransportType transport{RtmpTransportType::Libavformat};
 	std::string ffmpeg_path{"ffmpeg"};
-	RtmpMode mode{RtmpMode::Enhanced};
 };
 
 struct RtpOutputConfig {