Fix VM startup which failed since the second startup

Using Nuxeo VM 8.3

The VM displays: "Nuxeo not running".

When trying to run Nuxeo manually, we get the following error.

ERROR [org.nuxeo.launcher.config.ConfigurationGenerator] FATAL: password authentication failed for user "nuxeo"

After looking at /etc/nuxeo.conf, we can see that the property for the database password nuxeo.db.password has been defined a second time but the PostgreSQL role has not been altered.

So we need to understand why the password is changed and probably remove this step.