Improve overall performance (#6699)

* Improve overall performance

* Clean up code

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Remove needless ::

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Remove needless ::

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

substrate/client/transaction-pool/graph/src/base_pool.rs

@@ -278,7 +278,7 @@ impl<Hash: hash::Hash + Member + Serialize, Ex: std::fmt::Debug> BasePool<Hash,
 		tx: Transaction<Hash, Ex>,
 	) -> error::Result<Imported<Hash, Ex>> {
 		if self.is_imported(&tx.hash) {
-			return Err(error::Error::AlreadyImported(Box::new(tx.hash.clone())))
+			return Err(error::Error::AlreadyImported(Box::new(tx.hash)))
 		}
 
 		let tx = WaitingTransaction::new(

substrate/client/transaction-pool/graph/src/ready.rs

@@ -538,7 +538,7 @@ impl<Hash: hash::Hash + Member, Ex> Iterator for BestIterator<Hash, Ex> {
 				}
 			}
 
-			return Some(best.transaction.clone())
+			return Some(best.transaction)
 		}
 	}
 }