docs: Remove comment about hashing because it no longer applies

Co-authored-by: Phillip LeBlanc <[email protected]>

src/sql/db_connection_pool/sqlitepool.rs

@@ -68,7 +68,6 @@ impl SqliteConnectionPoolFactory {
                     attach_databases.sort();
 
                     JoinPushDown::AllowedFor(attach_databases.join(";")) // push down is allowed cross-database when they're attached together
-                                                                         // hash the list of databases to generate the comparison for push down
                 }
             }
             (Mode::File, None) => JoinPushDown::AllowedFor(self.path.to_string()),