Remove configuration that changes lax to none as it's no longer needed

[jonespm]

In the most recent version of the code this isn't needed so these lines can be removed.

https://github.com/tl-its-umich-edu/docker-base-images/blob/d5c325cb2a0a35196b6c2016bb3b0fb8658e2f68/qualtrics-lti/Dockerfile.umich#L5