Remove unnecessary setting of hub_api_token
The traitlet already defaults to picking it up from
the correct place
@@ -4,8 +4,6 @@ from functools import lru_cache
from urllib.parse import urlparse
import yaml
-c.BinderHub.hub_api_token = os.environ['JUPYTERHUB_API_TOKEN']
-
def _merge_dictionaries(a, b):
"""Merge two dictionaries recursively.
