We already monkeypatch require so that it is redirected through the
require_loader. All of the tests pass with this removal. We might
cause some breakage with this removal that we aren't testing, but given
that we are mucking with `require` it seems preferable to have one
mechanism by which we do that and solve any bugs with that single path.
Signed-off-by: Steven Danna <steve@chef.io>
