message: Remove class ScoreCompare from miner.cpp
  This is no longer used since we removed the score mining
  algorithm.
diff: #include <queue>
  #include <thread>
  -// Track timing information for Score and Package mining.
  +// Track timing information for Package mining.
  std::atomic<int64_t> nTotalPackage{0};
  /** Maximum number of failed attempts to insert a package into a block */
  @@ -60,16 +60,6 @@ uint64_t nLastBlockTx = 0;
  uint64_t nLastBlockSize = 0;
  -class ScoreCompare
  -{
  -public:
  - ScoreCompare() {}
  - bool operator()(const CTxMemPool::txiter a, const CTxMemPool::txiter b) const
  - {
  - return CompareTxMemPoolEntryByScore()(*b, *a); // Convert to less than
  - }
  -};
  -
  int64_t UpdateTime(CBlockHeader *pblock, const Consensus::Params &consensusParams, const CBlockIndex *pindexPrev)
  {
  int64_t nOldTime = pblock->nTime;
  