Fix: Remove database initialization from upgrading section. (Redmine issue: #7381)

doc/sphinx/_doclib/upgrading.rst

@@ -52,7 +52,6 @@ to latest version:
     # Step 4: Make sure your database schema is up to date. Please be aware, that
     # these operations may need a lot of time to complete depending on the size
     # of your database:
-    (venv) $ time mentat-dbmngr.py --command init
     (venv) $ time hawat-cli db upgrade
     (venv) $ time /etc/mentat/scripts/sqldb-migrate.sh upgrade head
     (venv) $ time /etc/mentat/scripts/sqldb-optimize.sh