MAINT: remove unused local vars in mixture._gaussian_mixture.py (scikit-learn#31432)

Author: ChVeen

sklearn/mixture/_gaussian_mixture.py

@@ -863,9 +863,6 @@ def _set_parameters(self, params):
         ) = params
 
         # Attributes computation
-        _, n_features = self.means_.shape
-
-        dtype = self.precisions_cholesky_.dtype
         if self.covariance_type == "full":
             self.precisions_ = np.empty_like(self.precisions_cholesky_)
             for k, prec_chol in enumerate(self.precisions_cholesky_):