Remove LTIAuth fork install on hub image
Remove LTIAuth fork install on hub image

The PR had already been merged, and the new hub image has
it

berkeley-dsep-infra/datahub,ryanlovett/datahub,berkeley-dsep-infra/datahub,ryanlovett/datahub,berkeley-dsep-infra/datahub,ryanlovett/datahub