Remove unused import

substrate/frame/salary/src/migration.rs

@@ -20,8 +20,6 @@
 use super::*;
 use frame_support::{pallet_prelude::*, storage_alias, traits::UncheckedOnRuntimeUpgrade};
 
-// #[cfg(feature = "try-runtime")]
-// use alloc::vec::Vec;
 #[cfg(feature = "try-runtime")]
 use sp_runtime::TryRuntimeError;