Merge branch 'master' into dependabot/github_actions/github/codeql-action-3.30.3

Author: mhucka

src/openfermion/resource_estimates/pbc/df/df_integrals.py

@@ -86,7 +86,6 @@ def __init__(self, cholesky_factor: npt.NDArray, kmf: scf.HF):
                 self.reverse_k_transfer_map[kidx, kmq_idx] = qidx
 
         # set up for later when we construct DF
-        self.df_factors = None
         self.a_mats = None
         self.b_mats = None
 
@@ -168,8 +167,6 @@ def double_factorize(self, thresh=None) -> None:
         """
         if thresh is None:
             thresh = 1.0e-13
-        if self.df_factors is not None:
-            return self.df_factors
 
         nkpts = self.nk
         nmo = self.nao