Addresses ENG-7886.
Introduced LogOutSecondaryDevice RPC which is going to be called by secondary device when user clicks the logout button.
This is part of the "CSAT invalidation flow" described in ENG-5293.
In contrast to the existing LogOutUser RPC, this one will only clear CSAT and device keys, but won't be modifying the device list.
Depends on D12091
Can we extract this to its own line? Similar to how we want await to be visible, I think it's good for hooks to be as well