docs: public void deregisterTransaction(TransactionImpl tran) {
          if (tc.isEntryEnabled())
              Tr.entry(tc, "deregisterTransaction", new Object[] { this, tran });
  
          _recoveringTransactions.remove(tran);
  
          if (tc.isEntryEnabled())
              Tr.exit(tc, "deregisterTransaction", _recoveringTransactions.size());
      }