Remove ChainController's non_owning_clone method

chain/src/chain.rs

@@ -99,15 +99,6 @@ impl ChainController {
                 .into())
         })
     }
-
-    /// Since a non-owning reference does not count towards ownership,
-    /// it will not prevent the value stored in the allocation from being dropped
-    pub fn non_owning_clone(&self) -> Self {
-        ChainController {
-            truncate_sender: self.truncate_sender.clone(),
-            process_block_sender: self.process_block_sender.clone(),
-        }
-    }
 }
 
 /// The struct represent fork

ckb-bin/src/subcommand/run.rs

@@ -47,7 +47,7 @@ pub fn run(args: RunArgs, version: Version, async_handle: Handle) -> Result<(),
 
     let (network_controller, _rpc_server) = launcher.start_network_and_rpc(
         &shared,
-        chain_controller.non_owning_clone(),
+        chain_controller.clone(),
         miner_enable,
         pack.take_relay_tx_receiver(),
     );