Update api tests from tempest

This change is the result of running tools/copy_api_tests_from_tempest.sh

Change-Id: Ibcb6d11b3f7ed8b859c69d4c591bf785b0611416
diff --git a/neutron/tests/tempest/common/credentials.py b/neutron/tests/tempest/common/credentials.py
index a52ec4a..9ae6ee8 100644
--- a/neutron/tests/tempest/common/credentials.py
+++ b/neutron/tests/tempest/common/credentials.py
@@ -58,7 +58,8 @@
             is_admin = False
     else:
         try:
-            cred_provider.get_configured_credentials('identity_admin')
+            cred_provider.get_configured_credentials('identity_admin',
+                                                     fill_in=False)
         except exceptions.InvalidConfiguration:
             is_admin = False
     return is_admin