Remove unused global variables

Author: dan-fernandes

tiled/_tests/test_in_memory_authn.py

@@ -6,9 +6,6 @@
 from tiled.client import Context, from_context
 from tiled.server.app import build_app_from_config
 
-CONFIG_NAME = "in_memory_db.yml"
-CATALOG_STORAGE = "data/"
-
 here = Path(__file__).parent.absolute()