debuginfod PR25583: map -R to -Z.rpm

It was reported that libarchive (bsdtar) at least as far back as rhel7
(3.1.2) can natively process RPM files, so there's no need to mediate
those accesses through rpm2cpio.  There's no noteworthy performance or
testing impact.

Signed-off-by: Frank Ch. Eigler <[email protected]>
Signed-off-by: Mark Wielaard <[email protected]>
4 files changed