public static void execute(ExecutablePool pool, String region, List keys, boolean isClosing,
      boolean keepAlive) {
    AbstractOp op = new UnregisterInterestListOpImpl(region, keys, isClosing, keepAlive);
    pool.executeOnAllQueueServers(op);
  }
Does a region unregisterInterestList on a server using connections from the given pool to
communicate with the server.

@param pool the pool to use to communicate with the server.
@param region the name of the region to do the unregisterInterestList on
@param keys list of keys we are interested in
@param isClosing true if this unregister is done by a close
@param keepAlive true if this unregister should not undo a durable registration
geode-core/src/main/java/org/apache/geode/cache/client/internal/UnregisterInterestListOp.java