message: Remove newdaaactivationtime from allowed args list
  This should have been removed in ("Activate the new DAA by
  height") but it slipped through.
diff: @@ -236,11 +236,6 @@ static void addGeneralOptions(AllowedArgs &allowedArgs, HelpMessageMode mode)
  strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"),
  DEFAULT_CHECKLEVEL));
  -#ifdef BITCOIN_CASH
  - allowedArgs.addArg("newdaaactivationtime=<epoch>", requiredInt,
  - strprintf(_("Bitcoin Cash November 13th activation time (default: %u"), 1510600000));
  -#endif
  -
  #ifndef WIN32
  if (mode == HMM_BITCOIND)
  allowedArgs.addArg("daemon", optionalBool, _("Run in the background as a daemon and accept commands"));
  