@Override
    public void run() {
      getMemcachedRegion(cache).remove(key);
      expiryFutures.remove(key);
      if (cache.getLogger().fineEnabled()) {
        cache.getLogger().fine("expiration removed key:" + key);
      }
    }
Removes key from the cache and expiryFuture
geode-memcached/src/main/java/org/apache/geode/internal/memcached/commands/StorageCommand.java