services/identity: Remove unnecessary code.
services/identity: Remove unnecessary code.

Since vanadium/issues#739 has been resolved, this is no longer needed.

Change-Id: I6f77547836ca71052a386d1db146a71a71c6bb18

vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref