Remove unknown command handler to avoid interfering with other bots

- Removed the 'Unknown command! Use !duckhelp' message for unrecognized commands
- Bot now only responds to valid duckhunt commands and stays silent for others
- This allows other bots in the channel to handle their own commands without interference

duckhunt/simple_duckhunt.py

@@ -1402,9 +1402,7 @@ class SimpleIRCBot:
                     await self.handle_admin_givexp(nick, channel, target_nick, amount)
                 else:
                     self.send_message(channel, f"{nick} > Usage: !givexp <nick> <amount>")
-            else:
-                # Unknown command - show help
-                self.send_message(channel, f"{nick} > Unknown command! Use !duckhelp to see available commands.")
+            # No else clause - ignore unknown commands to avoid interfering with other bots
                     
         except Exception as e:
             # Graceful degradation - log error but don't crash