Revert "check sshd_config"

This reverts commit 93332b4d1e.

Dockerfile

@@ -16,7 +16,6 @@ RUN rm -f /etc/ssh/ssh_host_* \
  && echo "AllowTcpForwarding no" >> /etc/ssh/sshd_config \
  && echo "ChrootDirectory %h" >> /etc/ssh/sshd_config \
  && echo "ForceCommad internal-sftp" >> /etc/ssh/sshd_config \
- && cat /etc/ssh/sshd_config \
  && touch $AUTHORIZED_KEYS_FILE \
  && chown $OWNER $AUTHORIZED_KEYS_FILE \
  && chmod 0600 $AUTHORIZED_KEYS_FILE \