The method GroupControl.Factory#controlFor(AccountGroup.Id) was only
used by GroupsCollection#parseId. When this call is inlined, it becomes
obvious that the creation of a GroupControl instance is unnecessary.
This change has the additional benefit of reducing the use of
AccountGroup.Id in our code base and to keep new code from using
GroupControl.Factory#controlFor(AccountGroup.Id) instead of the
recommended method GroupControl.Factory#controlFor(AccountGroup.UUID).
Change-Id: I9c3b69769a567192ec4582e11bd774c942e1b068
a59d8b7fe3