Remove unused numeric for +T

Conrad Lukawski · Conrad Lukawski · commit 2a7435fa235a · 2020-06-28T00:00:22.000-04:00
diff --git a/irc/numerics.go b/irc/numerics.go
@@ -163,7 +163,6 @@ const (
 	ERR_NOOPERHOST                = "491"
 	ERR_UMODEUNKNOWNFLAG          = "501"
 	ERR_USERSDONTMATCH            = "502"
-	ERR_CANTSENDTOUSER            = "531"
 	ERR_HELPNOTFOUND              = "524"
 	ERR_CANNOTSENDRP              = "573"
 	RPL_WHOISSECURE               = "671"
