Remove printing password/jupyter token into logs for safety

I'd suggest removing the printing of the password, which makes it visible in the logs and if someone shares their logs for debugging, the password could be leaked. Not sure if printing the password has some other purpose?

start_server.sh

@@ -1,8 +1,6 @@
 #!/bin/bash
 JUPYTER_TOKEN="${JUPYTER_TOKEN:=huggingface}"
 
-echo "Starting Jupyter Lab with token $JUPYTER_TOKEN"
-
 NOTEBOOK_DIR="/data"
 
 jupyter-lab \