rpm: drop "is_opensuse" conditional in SUSE-specific bcond block

rpm: drop "is_opensuse" conditional in SUSE-specific bcond block

Until now, "ocf" and "libradosstriper" were disabled on SLE, but not
openSUSE.

Leaving them enabled for openSUSE makes it appear as if these features
are expected to do something useful on SUSE.

Dropping the "is_opensuse" conditional has the desirable side effect of
streamlining the SUSE bcond block, and in the spirit of "and that's not
all", we take the opportunity to put the bconds in alphabetical order
for comforting cosmetic effect.

Signed-off-by: Nathan Cutler <ncutler@suse.com>