obs/slapos: we don't need dirs file

See https://www.debian.org/doc/manuals/maint-guide/dother.en.html#dirs

obs/slapos/debian/dirs

-/opt/slapos
-/srv/slapgrid
-/opt/slapgrid
-/etc/opt/slapos
-/etc/opt/slapos/ssl
-/var/opt/slapos
-/var/opt/slapos/lib
-/var/opt/slapos/log
-/var/opt/slapos/run
-/usr/bin
-/usr/share/
\ No newline at end of file