remove Business::OnlinePayment Interface

Signed-off-by: Caleb Cushing <xenoterracide@gmail.com>

Conflicts:
	lib/Business/OnlinePayment/PaperlessTrans.pm
	t/bop/cc/reject/authorization-only.t
	t/bop/cc/reject/normal-authorization.t
	t/bop/cc/success/authorization-only.t
	t/bop/cc/success/normal-authorization.t
	t/bop/echeck/reject/normal-authorization.t
	t/bop/echeck/success/normal-authorization.t