Remove macro to free locale

This functionality can now be handled automatically because locale can
now be freed seaparately from obs_module_unload with
obs_module_free_locale, which is called automatically when the module is
being freed.

libobs/obs-module.h

@@ -77,11 +77,12 @@ MODULE_EXPORT void obs_module_free_locale(void);
 		obs_module_lookup = obs_module_load_locale( \
 				obs_current_module(), \
 				default_locale, locale); \
+	} \
+	void obs_module_free_locale(void) \
+	{ \
+		text_lookup_destroy(obs_module_lookup); \
 	}
 
-#define OBS_MODULE_FREE_DEFAULT_LOCALE() \
-	text_lookup_destroy(obs_module_lookup)
-
 /** Helper function for looking up locale if default locale handler was used */
 extern const char *obs_module_text(const char *lookup_string);