Always enable modeless channels.

Modeless channels (+channels) are described in RFC 2811;
so my modifications to
530112b114
('Add support for modeless channels')
to disable +channels for --strict-rfc configurations
were wrong. This reverts those changes.

src/ngircd/channel.c

@@ -480,14 +480,8 @@ Channel_IsValidName( const char *Name )
 {
 	assert( Name != NULL );
 
-	switch (Name[0]) {
-		case '#': break;
-#ifndef STRICT_RFC
-		case '+': /* modeless channel */
-		break;
-#endif
-		default: return false;
-	}
+	if (strchr("+#", Name[0]) == NULL)
+		return false;
 	if (strlen(Name) >= CHANNEL_NAME_LEN)
 		return false;
 

src/ngircd/irc-channel.c

@@ -242,10 +242,9 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
 			if (!chan) {
 				/*
 				 * New Channel: first user will be channel operator
-				 * unless this is a modeless channel... */
-#ifndef STRICT_RFC
+				 * unless this is a modeless channel.
+				 */
 				if (*channame != '+')
-#endif
 					flags = "o";
 			} else
 				if (!join_allowed(Client, target, chan, channame, key))

src/ngircd/irc-mode.c

@@ -286,12 +286,11 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 	long l;
 	size_t len;
 
-#ifndef STRICT_RFC
 	/* Are modes allowed on channel? */
 	if (Channel_Name(Channel)[0] == '+')
 		return IRC_WriteStrClient(Client, ERR_NOCHANMODES_MSG,
 				Client_ID(Client), Channel_Name(Channel));
-#endif
+
 	/* Mode request: let's answer it :-) */
 	if (Req->argc <= 1)
 		return Channel_Mode_Answer_Request(Origin, Channel);