message: tests: fix outdate include in blockfilter_index_tests
diff: -// Copyright (c) 2017-2018 The Bitcoin Core developers
  +// Copyright (c) 2017-2019 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  #include <index/blockfilterindex.h>
  #include <miner.h>
  #include <pow.h>
  -#include <test/test_bitcoin.h>
  +#include <test/setup_common.h>
  #include <script/standard.h>
  #include <validation.h>
  