remove hardcoded b2 domain

[afazio1]

PR Title

Issue Number(s): #number_of_issue

What does this PR change and why?

Checklist

• [ ] Requirements have been implemented
• [ ] Acceptance criteria is met
• [ ] Database schema docs have been updated or are not necessary
• [ ] Relevant reviewers (EM) have been assigned to this PR

Critical Changes

• Database change / migration to run
• Environment config change
• Breaking API change

Related PRs

PR Number(s): #number_of_pr

How To Test

The steps to test the functionality of your ticket. Include edge cases and testing of error handling, if applicable.

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