message: [cleanup] Remove unused variables
  EarmarkedLibraCoin: removed unused variables
diff: @@ -56,8 +56,6 @@ module EarmarkedLibraCoin {
  // Allow the creator of the earmarked coin to reclaim it.
  public claim_for_creator(): R#Self.T {
  let t: R#Self.T;
  - let coin: R#LibraCoin.T;
  - let recipient: address;
  let sender: address;
  sender = get_txn_sender();
  