How to disable this Login completely on sites it is not needed? I cannot find it among modules nor in template parameters. This should be made configurable, no?
EDIT: Indeed it is, but as the documentation for most of these features is insufficient at best, it took a considerable amount of time to trace this. Evidently there IS a module named "GK Register" published in "register" position. Disable that, and it will be gone.
Hope this saves someone else some time.