Fixed deletion of last locale

source/ubl-settings-system-language.c

@@ -132,6 +132,9 @@ void on_language_remove(GtkWidget *, main_window *widgets){
         if (!yon_char_is_empty(temp)){
             yon_config_register(locale_parameter,locale_parameter_command,temp);
             free(temp);
+        } else {
+            yon_config_remove_by_key(locale_parameter);
+
         }
         locale_param = config(language_parameter);
         if (!yon_char_is_empty(locale_param)&&!strcmp(locale_param,target)){