The default value was removed from common.

cms/envs/aws.py

@@ -153,7 +153,7 @@ AWS_SECRET_ACCESS_KEY = AUTH_TOKENS["AWS_SECRET_ACCESS_KEY"]
 DATABASES = AUTH_TOKENS['DATABASES']
 MODULESTORE = AUTH_TOKENS['MODULESTORE']
 CONTENTSTORE = AUTH_TOKENS['CONTENTSTORE']
-DOC_STORE_CONFIG = AUTH_TOKENS.get('DOC_STORE_CONFIG',DOC_STORE_CONFIG)
+DOC_STORE_CONFIG = AUTH_TOKENS['DOC_STORE_CONFIG']
 # Datadog for events!
 DATADOG = AUTH_TOKENS.get("DATADOG", {})
 DATADOG.update(ENV_TOKENS.get("DATADOG", {}))