Removed get_tiles_by_zxy function. The function was broken as it was calling a non existent function get_tile_locations()
Removed get_tiles_by_zxy function. The function was broken as it was calling a non existent function get_tile_locations()

michaelconnor00/gbdxtools,DigitalGlobe/gbdxtools,DigitalGlobe/gbdxtools,michaelconnor00/gbdxtools