Clarify/comment unused function

core/models/manage/version_check.py

@@ -348,17 +348,18 @@ def check_database_compatibility(session: Session) -> dict:
         }
 
 
+# DEAD CODE. Not used.  But COULD be in the future.
 def delete_sync_metadata(session: Session) -> bool:
     """
+    Called By:
+        Nobody, dead code.  I originally was going to use this but cut it's use.
+
     Purpose:
         Clears existing rows of metadata
 
     Rank:
         Helper
 
-    Called By:
-        Migrations
-
     Args:
         session: SQLAlchemy session