Fix build when with-kvdb-rocksdb is disabled. (#6546)

substrate/client/db/src/utils.rs

@@ -36,7 +36,7 @@ use crate::{DatabaseSettings, DatabaseSettingsSrc, Database, DbHash};
 
 /// Number of columns in the db. Must be the same for both full && light dbs.
 /// Otherwise RocksDb will fail to open database && check its type.
-#[cfg(any(feature = "with-kvdb-rocksdb", feature = "test-helpers", test))]
+#[cfg(any(feature = "with-kvdb-rocksdb", feature = "with-parity-db", feature = "test-helpers", test))]
 pub const NUM_COLUMNS: u32 = 11;
 /// Meta column. The set of keys in the column is shared by full && light storages.
 pub const COLUMN_META: u32 = 0;