remove rsa1 since it is now unsupported

start.sh

@@ -32,7 +32,6 @@ fi
 if [[ ! -f "/app/data/sshd/ssh_host_ed25519_key" ]]; then
     echo "Generating ssh host keys"
     mkdir -p /app/data/sshd
-    ssh-keygen -qt rsa1 -N '' -f /app/data/sshd/ssh_host_key
     ssh-keygen -qt rsa -N '' -f /app/data/sshd/ssh_host_rsa_key
     ssh-keygen -qt dsa -N '' -f /app/data/sshd/ssh_host_dsa_key
     ssh-keygen -qt ecdsa -N '' -f /app/data/sshd/ssh_host_ecdsa_key