@Override
  public ByteBuffer processCommand(RequestReader request, Protocol protocol, Cache cache) {
    if (protocol == Protocol.ASCII) {
      return processAsciiCommand(request.getRequest(), cache);
    }
    return processBinaryCommand(request, cache);
  }
The command "delete" allows for explicit deletion of items: delete <key> [noreply]\r\n
geode-memcached/src/main/java/org/apache/geode/internal/memcached/commands/DeleteCommand.java