tlf_handle_resolve: never skip implicit team resolution
tlf_handle_resolve: never skip implicit team resolution

For non-single-team folders, we should always check whether something
is an implicit team, now that we've started migrating TLFs.  This was
originally intended to avoid extra implicit team calls for chat, but
now that chat is all upgraded, it almost never calls into KBFS, so
this shouldn't change the behavior at all.

Issue: KBFS-3480

keybase/client,keybase/client,keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/kbfs,keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/kbfs