cleanup

versiondb/tsrocksdb/opts.go

@@ -64,19 +64,6 @@ func OpenVersionDB(dir string) (*grocksdb.DB, *grocksdb.ColumnFamilyHandle, erro
 	return db, cfHandles[1], nil
 }
 
-// OpenVersionDBForReadOnly opens versiondb for read-only.
-func OpenVersionDBForReadOnly(dir string, errorIfWalFileExists bool) (*grocksdb.DB, *grocksdb.ColumnFamilyHandle, error) {
-	opts := grocksdb.NewDefaultOptions()
-	db, cfHandles, err := grocksdb.OpenDbForReadOnlyColumnFamilies(
-		opts, dir, []string{"default", VersionDBCFName},
-		[]*grocksdb.Options{opts, NewVersionDBOpts(false)}, errorIfWalFileExists,
-	)
-	if err != nil {
-		return nil, nil, err
-	}
-	return db, cfHandles[1], nil
-}
-
 // OpenVersionDBAndTrimHistory opens versiondb similar to `OpenVersionDB`,
 // but it also trim the versions newer than target one, can be used for rollback.
 func OpenVersionDBAndTrimHistory(dir string, version int64) (*grocksdb.DB, *grocksdb.ColumnFamilyHandle, error) {