Remove 'locale' parameter from all callbacks

The locale parameter was a mistake, because it puts extra needless
burden upon the module developer to have to handle this variable for
each and every single callback function.  The parameter is being removed
in favor of a single centralized module callback function that
specifically updates locale information for a module only when needed.

libobs/obs-service.h

@@ -21,7 +21,7 @@ struct obs_service_info {
 	/* required */
 	const char *id;
 
-	const char *(*getname)(const char *locale);
+	const char *(*getname)(void);
 	void *(*create)(obs_data_t settings, obs_service_t service);
 	void (*destroy)(void *data);
 
@@ -33,7 +33,7 @@ struct obs_service_info {
 
 	void (*defaults)(obs_data_t settings);
 
-	obs_properties_t (*properties)(const char *locale);
+	obs_properties_t (*properties)(void);
 
 	/**
 	 * Called when getting ready to start up an output, before the encoders