Unregisters an existing recipe, so that this recipe is no longer available.

        This function is mainly used during plugin deactivation.

        :param recipe: Name of the recipe

def unregister(self, recipe):
        """
        Unregisters an existing recipe, so that this recipe is no longer available.

        This function is mainly used during plugin deactivation.

        :param recipe: Name of the recipe
        """
        if recipe not in self.recipes.keys():
            self.__log.warning("Can not unregister recipe %s" % recipe)
        else:
            del (self.recipes[recipe])
            self.__log.debug("Recipe %s got unregistered" % recipe)