fix: remove duplicate shub setting

[vladdoster]

Not quite sure why the formatting check is failing...?

[vsoch]

@vladdoster add the '.tributors file to this line here https://github.com/singularityhub/sregistry/blob/c4c26050cb467932661409fae94a621c7b159d76/.pre-commit-config.yaml#L1 to skip checking it.

[vladdoster]

@vladdoster add the '.tributors file to this line here

https://github.com/singularityhub/sregistry/blob/c4c26050cb467932661409fae94a621c7b159d76/.pre-commit-config.yaml#L1

to skip checking it.

@vsoch,

I assume you meant to type .tributors, and the ' was accidental?

[vladdoster]

I'll rebase this branch once #427 is merged. I split it into a separate PR to make the changes more atomic.

[vsoch]

Thanks @vladdoster !