[Improvment] duplicated data selection from exterema_df

[ezpzbz]

Hi,

I have been using the ChargeInsertionAnalyzer class and realized that within the get_label function, we first select the desired data with average charge density below the maximum threshold from extrema_df:

pymatgen/pymatgen/analysis/defects/utils.py

Line 1344 in c724e7b

self._extrema_df = self._extrema_df[self._extrema_df.avg_charge_den <= self.max_avg_charge]

However, later below where we are constructing the inserted_strc, we check again if the site average charge density is below the threshold:

pymatgen/pymatgen/analysis/defects/utils.py

Lines 1347 to 1348 in c724e7b

	if li_site["avg_charge_den"] > self.max_avg_charge:
	continue

I think we remove the latter condition from the loop.

If you think this makes sense to be done, I'd be happy to open a PR.

Cheers,
Pezhman