public boolean isHostedTXStatesEmpty() {
    return hostedTXStates.isEmpty();
  }
Find all client originated transactions sent from the departed proxy server. Remove them from
the hostedTXStates map after the set TransactionTimeToLive period.

@param proxyServer the departed proxy server
geode-core/src/main/java/org/apache/geode/internal/cache/TXManagerImpl.java