Only a single clear mode is ever used, removed the rest.

SharpChat.SockChat/PacketsS2C/ClearMessagesAndUsersS2CPacket.cs

@@ -0,0 +1,7 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ClearMessagesAndUsersS2CPacket : ISockChatS2CPacket {
+        public string Pack() {
+            return "8\t3";
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ContextClearS2CPacket.cs

@@ -1,21 +0,0 @@
-namespace SharpChat.SockChat.PacketsS2C {
-    public class ContextClearS2CPacket : ISockChatS2CPacket {
-        public enum ClearMode {
-            Messages = 0,
-            Users = 1,
-            Channels = 2,
-            MessagesUsers = 3,
-            MessagesUsersChannels = 4,
-        }
-
-        private readonly ClearMode Mode;
-
-        public ContextClearS2CPacket(ClearMode mode) {
-            Mode = mode;
-        }
-
-        public string Pack() {
-            return string.Format("8\t{0}", (int)Mode);
-        }
-    }
-}

SharpChat.SockChat/SockChatContext.cs

@@ -445,7 +445,7 @@ namespace SharpChat {
 
             Events.Dispatch("chan:join", now, chan, user);
 
-            SendTo(user, new ContextClearS2CPacket(ContextClearS2CPacket.ClearMode.MessagesUsers));
+            SendTo(user, new ClearMessagesAndUsersS2CPacket());
             SendTo(user, new UsersPopulateS2CPacket(GetChannelUsers(chan).Except(new[] { user }).Select(
                 user => new UsersPopulateS2CPacket.ListEntry(
                     user.UserId,