Consolidate C and I generics into a TendermintClient trait alias

substrate/consensus/src/lib.rs

@@ -56,7 +56,6 @@ pub fn import_queue<A: Announce<Block>>(
   registry: Option<&Registry>,
 ) -> (impl Future<Output = ()>, TendermintImportQueue<Block, TransactionFor<FullClient, Block>>) {
   import_queue::import_queue(
-    client.clone(),
     client.clone(),
     announce,
     Arc::new(|_, _| async { Ok(sp_timestamp::InherentDataProvider::from_system_time()) }),