grim/hgkeeper

Remove unused environment variable

12 months ago, aklitzing
cc7d4b7251eb
Remove unused environment variable

It is not necessary since c10e152f5523.

Reviewed at https://reviews.imfreedom.org/r/2447/
# Access Control
Access control is defined in the `hgkeeper` administration repository. that is
created via the `hgkeeper setup` command. It is implemented via
[Casbin](https://casbin.org/) using the RBAC with deny-override model as a
base.