Banish Redis support to the shadow realm.

Nobody actually uses this and it hasn't been tested in years so it
a massive pain to maintain. It may be replaced with an alternate
NoSQL database such as MongoDB in the future.

include/modules/redis.h

@@ -1,83 +0,0 @@
-// Anope IRC Services <https://www.anope.org/>
-//
-// Copyright (C) 2003-2026 Anope Contributors
-//
-// Anope is free software. You can use, modify, and/or distribute it under the
-// terms of version 2 of the GNU General Public License. See docs/LICENSE.txt
-// for the complete terms of this license and docs/AUTHORS.txt for a list of
-// contributors.
-//
-// Based on the original code of Epona by Lara
-// Based on the original code of Services by Andy Church
-//
-// SPDX-License-Identifier: GPL-2.0-only
-
-#pragma once
-
-namespace Redis
-{
-	struct Reply final
-	{
-		enum Type
-		{
-			NOT_PARSED,
-			NOT_OK,
-			OK,
-			INT,
-			BULK,
-			MULTI_BULK
-		}
-		type;
-
-		Reply() { Clear(); }
-		~Reply() { Clear(); }
-
-		void Clear()
-		{
-			type = NOT_PARSED;
-			i = 0;
-			bulk.clear();
-			multi_bulk_size = 0;
-			for (const auto *reply : multi_bulk)
-				delete reply;
-			multi_bulk.clear();
-		}
-
-		int64_t i;
-		Anope::string bulk;
-		int multi_bulk_size;
-		std::deque<Reply *> multi_bulk;
-	};
-
-	class Interface
-	{
-	public:
-		Module *owner;
-
-		Interface(Module *m) : owner(m) { }
-		virtual ~Interface() = default;
-
-		virtual void OnResult(const Reply &r) = 0;
-		virtual void OnError(const Anope::string &error) { Log(owner) << error; }
-	};
-
-	class Provider
-		: public Service
-	{
-	public:
-		Provider(Module *c, const Anope::string &n) : Service(c, "Redis::Provider", n) { }
-
-		virtual bool IsSocketDead() = 0;
-
-		virtual void SendCommand(Interface *i, const std::vector<Anope::string> &cmds) = 0;
-		virtual void SendCommand(Interface *i, const Anope::string &str) = 0;
-
-		virtual bool BlockAndProcess() = 0;
-
-		virtual void Subscribe(Interface *i, const Anope::string &pattern) = 0;
-		virtual void Unsubscribe(const Anope::string &pattern) = 0;
-
-		virtual void StartTransaction() = 0;
-		virtual void CommitTransaction() = 0;
-	};
-}

include/serialize.h

@@ -88,9 +88,6 @@ public:
 	/* Unique ID (per type, not globally) for this object */
 	Id object_id = 0;
 
-	/* Only used by redis, to ignore updates */
-	unsigned short redis_ignore = 0;
-
 	/** Marks the object as potentially being updated "soon".
 	 */
 	void QueueUpdate();