Remove unused code about only_identity_in_encrypted_assertion

Signed-off-by: Ivan Kanakarakis <ivan.kanak@gmail.com>

Author: c00kiemon5ter

src/saml2/entity.py

@@ -1187,11 +1187,6 @@ def _parse_response(self, xmlstr, response_cls, service, binding,
                 for _cert in cert:
                     keys.append(_cert["key"])
 
-        only_identity_in_encrypted_assertion = False
-        if "only_identity_in_encrypted_assertion" in kwargs:
-            only_identity_in_encrypted_assertion = kwargs[
-                "only_identity_in_encrypted_assertion"]
-
         try:
             assertions_are_signed = False
             # Record the assertions signature requirement.