message: Removed yet another pair of stray bounds for `Send + Sync`. This time on keys
diff: @@ -49,7 +49,7 @@ pub trait QueryStorageMassOps<DB: Database> {
  fn sweep(&self, db: &DB, strategy: SweepStrategy);
  }
  -pub trait DatabaseKey<DB>: Clone + Debug + Eq + Hash + Send + Sync {
  +pub trait DatabaseKey<DB>: Clone + Debug + Eq + Hash {
  /// Returns true if the value of this query may have changed since
  /// the given revision.
  fn maybe_changed_since(&self, db: &DB, revision: Revision) -> bool;
  