revert(chain)!: rm persit module

Author: evanlinjin

crates/chain/src/lib.rs

@@ -37,8 +37,6 @@ pub use tx_data_traits::*;
 pub use tx_graph::TxGraph;
 mod chain_oracle;
 pub use chain_oracle::*;
-mod persist;
-pub use persist::*;
 
 #[doc(hidden)]
 pub mod example_utils;