batcave: remove duplicated line in the zodboot announce hook

Turns out Aurélien had used a different/better syntax which I had
missed.

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

roles/batcave/files/zodbot-announce-commits.py

@@ -130,7 +130,6 @@ if branch == 'master':
 
         s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         s.connect((ZODBOT_SERVER, ZODBOT_PORT))
-        s.sendall((channel + " " + parsed_commit).encode('utf-8'))
         msg = f"{channel} {parsed_commit}"
         s.sendall(msg.encode('utf-8'))
         s.close()