Bug #1079 - Don't use users real host and IPs when matching against

bans and excepts, except when a user is unbanning themselves, in an
attempt to prevent people from gaining other users IPs.
This removes support for Unreal and Bahamuts SVSMode -b because
it will unban users by real host and IP.

modules/protocol/unreal32.cpp

@@ -25,7 +25,6 @@ IRCDVar myIrcd[] = {
 	 0,						/* Join 2 Message */
 	 0,						/* Chan SQlines */
 	 0,						/* Quit on Kill */
-	 1,						/* SVSMODE unban */
 	 1,						/* vidents */
 	 1,						/* svshold */
 	 1,						/* time stamp on mode */
@@ -301,12 +300,6 @@ class UnrealIRCdProto : public IRCDProto
 		send_cmd("", "BR + %s :%s", edited_reason.c_str(), x->Mask.c_str());
 	}
 
-	/* SVSMODE -b */
-	void SendBanDel(const Channel *c, const Anope::string &nick)
-	{
-		SendSVSModeChan(c, "-b", nick);
-	}
-
 	/* SVSMODE channel modes */
 
 	void SendSVSModeChan(const Channel *c, const Anope::string &mode, const Anope::string &nick)