mod_pep: Remove use of RLU cache when persist_items was set to false This behavior came from some confusion over the meaning of persist_items. The correct behavior is that items are only stored when it is set to true. When set to false, the service becomes a "pure" publish-subscribe service, where items are forgotten immediately after broadcasting.

-- Only the operators needed by net.websocket.frames are provided at this point
return {
	band   = function (a, b) return a & b end;
	bor    = function (a, b) return a | b end;
	bxor   = function (a, b) return a ~ b end;
};