Remove post-without-tmpfile-creation warning

[danigm]

This warning is not needed anymore. %tmpfiles macro nowadays is a noop since it is done via triggers in the systemd package.

Fix #1374

[Conan-Kudo]

Are there any distribution releases that are still supported that people might be using this check for? Perhaps RHEL and SLE?

[danigm]

Are there any distribution releases that are still supported that people might be using this check for? Perhaps RHEL and SLE?

• SLE-15 uses rpmlint v1, so there shouldn't be any problem of removing this from main branch.
• SLE-16 has the noop %tmpfiles_create macro

I don't know about RHEL, if this check is still relevant for any RedHat based distribution.

[Conan-Kudo]

RHEL 8+ all have the noop version of the macro. Only RHEL 7 didn't. It's probably fine at this point.

[FilippoBonazziSUSE]

@danigm , can we get this backported on opensuse? So we can address reports such as https://lists.opensuse.org/archives/list/factory@lists.opensuse.org/thread/5GIGESLINVGKVCQ5IWKGIVHKHD35UIID/

[danigm]

@danigm , can we get this backported on opensuse? So we can address reports such as https://lists.opensuse.org/archives/list/factory@lists.opensuse.org/thread/5GIGESLINVGKVCQ5IWKGIVHKHD35UIID/

done