99537: Remove silent_failure_avoided_no_confirmation from DR jobs

[dfong-adh]

Summary

This PR removes silent_failure_avoided_no_confirmation metrics from Decision Review sidekiq jobs as we are handling email callbacks and reporting silent_failure_avoided metrics. This also corrects when silent_failure metrics are reported for sidekiq jobs that have exhausted retries.

This is owned by Benefits Decision Reviews.

Related issue(s)

department-of-veterans-affairs/va.gov-team#99537

Testing done

Tested locally

• New code is covered by unit tests

What areas of the site does it impact?

This impacts the Decision Review sidekiq jobs

Acceptance criteria

• I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• No error nor warning in the console.
• Events are being sent to the appropriate logging solution
• Documentation has been updated (link to documentation)
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Feature/bug has a monitor built into Datadog (if applicable)
• If app impacted requires authentication, did you login to a local build and verify all authenticated routes work as expected
• I added a screenshot of the developed feature

[shaunburdick]

LGTM

[ryan-mcneil]

@dfong-adh If you merge master, it should clear it up the failing test