Revert "MSC2033: Adding a device_id to /account/whoami"

proposals/2033-whoami-device-id.md

@@ -1,30 +0,0 @@
-# Proposal to include device IDs in `/account/whoami`
-
-There are some use cases (namely using
-[Pantalaimon with bots](https://github.com/matrix-org/pantalaimon/issues/14))
-which could benefit from knowing the `device_id` associated with a token.
-
-
-## Proposal
-
-The `/account/whoami` endpoint receives an additional response field for the `device_id`
-associated with the access token. The field is optional because appservice users may not
-have a real device associated with them. Non-appservice users should always have a device
-associated with them.
-
-Access tokens are already associated with at most 1 device, and devices are associated with
-exactly 1 access token. Because of this, we do not need to worry about multiple devices
-causing problems. For more information, see
-https://matrix.org/docs/spec/client_server/r0.4.0.html#relationship-between-access-tokens-and-devices
-
-*Note*: Pantalaimon would likely require a `device_id` be returned and error requests
-otherwise. This should be considered expected behaviour by Pantalaimon in the MSC author's
-opinion.
-
-
-## Tradeoffs
-
-We could introduce a `/device/whoami` endpoint, however that is a less superior option. Most
-calls to `/device/whoami` would additionally need to call `/account/whoami` to determine the
-user ID of the account. We had might as well bundle the two pieces of information into the
-same request.