refactor: session.clearAuthCache nws13n

[nornagon]

Description of Change

Refactor session.clearAuthCache to use the network service. This results in losing the ability to filter what is cleared; we should deprecate this in 6-0-x.

Checklist

• PR description included and stakeholders cc'd
• npm test passes
• tests are changed or added
• relevant documentation is changed or added
• PR title follows semantic commit guidelines
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, and past tense.

Release Notes

Notes: session.clearAuthCache no longer allows filtering the cleared cache entries.

[nornagon]

Do not merge yet, I want to understand if it's actually OK to remove these APIs. (& land the deprecation first.)

[nornagon]

Landing this because we're going to have to figure out some way of moving this function to the network service before 7-0-x lands, so if we need to do more to support pre-existing use cases, we can build on top of this change :)

[release-clerk]

Release Notes Persisted

session.clearAuthCache no longer allows filtering the cleared cache entries.