[gdcvault] Skip test that is now restricted

youtube_dl/extractor/gdcvault.py

@@ -39,7 +39,8 @@ class GDCVaultIE(InfoExtractor):
                 'id': '1015301',
                 'ext': 'flv',
                 'title': 'Thexder Meets Windows 95, or Writing Great Games in the Windows 95 Environment',
-            }
+            },
+            'skip': 'Requires login',
         }
     ]