Use sensible logic in validphys2/src/validphys/config.py

Co-authored-by: siranipour <43517072+siranipour@users.noreply.github.com>

validphys2/src/validphys/config.py

@@ -1419,8 +1419,7 @@ class CoreConfig(configparser.Config):
                     "Generating closure test data which samples from the theory "
                     "covariance matrix has not been implemented yet."
                 )
-            else:
-                return validphys.filters.filter_closure_data_by_experiment
+            return validphys.filters.filter_closure_data_by_experiment