message: Fix clipy issues.
diff: @@ -64,8 +64,7 @@ pub extern "C" fn call() {
  if refund_purse_flag != 0 {
  let refund_purse = {
  let stored_purse_key = runtime::get_key(&purse_name).unwrap_or_revert();
  - let stored_purse = stored_purse_key.into_uref().unwrap_or_revert();
  - stored_purse
  + stored_purse_key.into_uref().unwrap_or_revert()
  };
  set_refund_purse(contract_hash, refund_purse);
  }
  