Drop lying Bosco tarball log message

Two lies:

- bosco_cluster doesn't necessarily use the URL provided by
  bosco_findplatform
- bosco_findplatform returns the URL for the OS of the host it's
  running on, not the remote host

Author: brianhlin

hosted-ce/30-remote-site-setup.sh

@@ -161,7 +161,6 @@ fi
 [[ $REMOTE_BOSCO_DIR ]] && bosco_cluster_opts+=(-b "$REMOTE_BOSCO_DIR") \
         || REMOTE_BOSCO_DIR=bosco
 
-echo "Using Bosco tarball: $(bosco_findplatform --url)"
 for ruser in $users; do
     setup_ssh_config
 done