Revert "Don't call GetPeerFromOtherThread with thread_list_lock_ held"

This reverts commit 2c4bfa20cfd4ea556a5a94f942ced5d2ccfe1c06.

Reason for revert: b/313347640

Change-Id: I055f1a868c9fe6a74278670e075c2e2aa3e82d2b
4 files changed