Merge pull request #1289 from tgstation/MrStonedOne-y-u-be-spammy

Remove annoying I don't respond to this channel message

src/Tgstation.Server.Host/Components/Chat/Providers/DiscordProvider.cs

@@ -557,9 +557,6 @@ namespace Tgstation.Server.Host.Components.Chat.Providers
 					if (mentionedUs)
 					{
 						Logger.LogTrace("Ignoring mention from {0} ({1}) by {2} ({3}). Channel not mapped!", e.Channel.Id, e.Channel.Name, e.Author.Id, e.Author.Username);
-
-						// DCT: None available
-						await SendMessage(e.Channel.Id, "I do not respond to this channel!", default).ConfigureAwait(false);
 					}
 
 					return;