tests: Remove redundant credentials from auth_log tests

The LDB connection in these tests is to the direct sam.ldb file on disk,
so the credentials are not actually needed (and in fact, weren't event
initialized correctly). These tests always need to run on the DC itself
(i.e. :local testenv) because they use ncalrpc connections.

Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

python/samba/tests/auth_log_netlogon.py

@@ -47,12 +47,9 @@ class AuthLogTestsNetLogon(samba.tests.auth_log_base.AuthLogTestBase):
     def setUp(self):
         super(AuthLogTestsNetLogon, self).setUp()
         self.lp = samba.tests.env_loadparm()
-        self.creds = Credentials()
-
         self.session = system_session()
         self.ldb = SamDB(
             session_info=self.session,
-            credentials=self.creds,
             lp=self.lp)
 
         self.domain = os.environ["DOMAIN"]