message: doxygen: Remove misleading checkpoints comment in CMainParams
diff: // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  #include <chainparams.h>
  -#include <consensus/merkle.h>
  +#include <chainparamsseeds.h>
  +#include <consensus/merkle.h>
  #include <tinyformat.h>
  #include <util.h>
  #include <utilstrencodings.h>
  #include <assert.h>
  -#include <chainparamsseeds.h>
  -
  static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
  {
  CMutableTransaction txNew;
  @@ -62,14 +61,6 @@ void CChainParams::UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64
  /**
  * Main network
  */
  -/**
  - * What makes a good checkpoint block?
  - * + Is surrounded by blocks with reasonable timestamps
  - * (no blocks before with a timestamp after, none after with
  - * timestamp before)
  - * + Contains no strange transactions
  - */
  -
  class CMainParams : public CChainParams {
  public:
  CMainParams() {
  