remove src.drivers, unused
remove src.drivers, unused

doclements/python-rasterstats,perrygeo/python-raster-stats,perrygeo/python-raster-stats,perrygeo/python-rasterstats,ozak/python-raster-stats,doclements/python-rasterstats,perrygeo/python-rasterstats,ozak/python-raster-stats