diff --git a/src/cryptography/x509/extensions.py b/src/cryptography/x509/extensions.py
index 97d7826..71ce8a1 100644
--- a/src/cryptography/x509/extensions.py
+++ b/src/cryptography/x509/extensions.py
@@ -18,9 +18,7 @@
 from cryptography.hazmat.primitives import constant_time, serialization
 from cryptography.x509.general_name import GeneralName, IPAddress, OtherName
 from cryptography.x509.name import Name
-from cryptography.x509.oid import (
-    AuthorityInformationAccessOID, ExtensionOID, ObjectIdentifier
-)
+from cryptography.x509.oid import ExtensionOID, ObjectIdentifier
 
 
 class _SubjectPublicKeyInfo(univ.Sequence):
diff --git a/tests/test_x509_ext.py b/tests/test_x509_ext.py
index ca1b9f4..bbdc607 100644
--- a/tests/test_x509_ext.py
+++ b/tests/test_x509_ext.py
@@ -1861,7 +1861,6 @@
 
 class TestAccessDescription(object):
     def test_invalid_access_method(self):
-        # access_method can be *any* valid OID
         with pytest.raises(TypeError):
             x509.AccessDescription("notanoid", x509.DNSName(u"test"))