Revert "Rework keyring check to support busybox cmp"
Since now busybox cmp supports -n and long options this delta is not longer needed.
Dropping it to minimize delta from Debian.
This reverts commit a88073f0.
Since now busybox cmp supports -n and long options this delta is not longer needed.
Dropping it to minimize delta from Debian.
This reverts commit a88073f0.