Update OudatedDatabaseError message

Drop redundant warning;
Do not list database_auto_migrate as an option (too risky; use this as
an option for development only).

lib/galaxy/model/migrations/__init__.py

@@ -80,8 +80,12 @@ class IncorrectVersionError(Exception):
 
 class OutdatedDatabaseError(Exception):
     # The database is under Alembic version control, but is out-of-date. Automatic upgrade possible.
-    def __init__(self, model: str) -> None:
-        msg = f"Your {model} database is out-of-date; automatic update requires setting `database_auto_migrate`"
+    def __init__(self, model: str, db_version: str, code_version: str) -> None:
+        msg = f"Your {model} database has version {db_version}, but this code expects "
+        msg += f"version {code_version}. "
+        msg += "To upgrade your database, run `manage_db.sh upgrade`. "
+        msg += "For more options (e.g. upgrading/downgrading to a specific version) see instructions in that file. "
+        msg += "Please remember to backup your database before migrating."
         super().__init__(msg)
 
 
@@ -410,23 +414,12 @@ class DatabaseStateVerifier:
         code_version = am.get_model_script_head(self.model)
         if not self.is_auto_migrate:
             db_version = am.get_model_db_head(self.model)
-            msg = self._get_upgrade_message(model, cast(str, db_version), cast(str, code_version))
-            log.warning(msg)
-            raise OutdatedDatabaseError(model)
+            raise OutdatedDatabaseError(model, cast(str, db_version), cast(str, code_version))
         else:
             log.info("Database is being upgraded to current version: {code_version}")
             am.upgrade(self.model)
             return
 
-    def _get_upgrade_message(self, model: str, db_version: str, code_version: str) -> str:
-        msg = f"Your {model} database has version {db_version}, but this code expects "
-        msg += f"version {code_version}. "
-        msg += "This database can be upgraded automatically if database_auto_migrate is set. "
-        msg += "To upgrade manually, run `manage_db.sh upgrade`. "
-        msg += "For more options (e.g. upgrading/downgrading to a specific version) see instructions in that file. "
-        msg += "Please remember to backup your database before migrating."
-        return msg
-
     def _get_model_name(self) -> str:
         return "galaxy" if self.model == GXY else "tool shed install"