syphon: Remove references to game capture

plugins/mac-syphon/data/locale/en-US.ini

@@ -1,4 +1,4 @@
-Syphon="Game Capture (Syphon)"
+Syphon="Syphon Client"
 Source="Source"
 LaunchSyphonInject="Launch SyphonInject"
 Inject="Inject"

plugins/mac-syphon/plugin-main.c

@@ -4,7 +4,7 @@ OBS_DECLARE_MODULE()
 OBS_MODULE_USE_DEFAULT_LOCALE("syphon", "en-US")
 MODULE_EXPORT const char *obs_module_description(void)
 {
-	return "Syphon based game capture for macOS";
+	return "Syphon frame sharing";
 }
 
 extern struct obs_source_info syphon_info;