sh: Revert "SH 7366 needs SCIF_ONLY"
This reverts commit 5ca8c4852fcbbc8a8497c4ee8b2a0a7466f3524c.
With the killing off of SCIF_ONLY and its spawn in sh-sci, we no longer
require this change, so just revert it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>