`utils.py` – Unused `buffer` argument in `_to_hex()`

[jGaboardi]

• utils.py – Unused buffer argument in _to_hex()

ARG001 Unused function argument: `buffer`
   --> tobler/util/util.py:183:54
    |
183 | def _to_hex(source, resolution=6, return_geoms=True, buffer=True):
    |                                                      ^^^^^^
184 |     """Generate a hexgrid geodataframe that covers the face of a source geometry.
    |

https://github.com/pysal/tobler/blob/7d87291abbe56c176179866afe165a76c3753469/tobler/util/util.py#L181

[jGaboardi]

https://github.com/pysal/tobler/pull/235