Drop the old (open)SUSE initscript
Also adjust the install-suse make target to
- make 'rcapparmor' a symlink to 'service'
- no longer create the 'rcsubdomain' symlink
(open)SUSE does this in apparmor.spec since several releases, so this commit upstreams the changes the spec did after running make install.
Upstreaming the systemd stuff is something for another commit ;-)