feat: remove login session by id

[burkov]

Use case:

1. User logs in with subject "A"
2. User somehow manages to login with subject "B" (for example removing account A and creating account B)
3. Now user is blocked by "Field 'subject' does not match subject from previous authentication." error on accepting login

This feature allows to remove login session on step (3) which will allow user to start auth from scratch.

Related issue(s)

A simpler version of #2876

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[burkov]

ooops, the right way to fix this is https://www.ory.sh/docs/hydra/advanced#using-login_hint-with-different-subject