Those are the default dip settings, for when a game starts that hasn't been started before. Check your parser against ours in burner/win32/inpdipsw.cpp.
{0x14, 0xff, 0xff, 0x7f, NULL },
0x14 is the position # of DrvDips variable in the input structure. one of the next 0xff's is to tell the parser that its the default dips, and one of them is the bitmask (check the struct to be sure), the 0x7f is the actual default dip settings. The description field is usually left NULL for default settings.
If you remove this, chances are the game will break. delete config/games/actfancr.ini so it uses the defaults and reload your game and see what I mean.
best regards,
- dink