Disable Local User Login

[LickABrick]

Hi, I am syncing users via LDAP but not all users should be able to login. This is easy to do by just setting the login to disabled.
But I also have setup SAML to let Admins of Snipe-IT login.

Currently these users can either login via SAML or with LDAP. How can I disable local user login completely and only allow login via SAML? I a Github Issue I've seen someone mention there is a .env variable for this but I cannot seem to find which one it is.

[snipe]

You can set REQUIRE_SAML to true in your .env.

https://snipe-it.readme.io/docs/configuration#optional-misc