test/system: remove deprecated cgroupsv1 skip check

Remove skip_if_rootless_cgroupsv1 call from quadlet tests since
cgroupsv1 is deprecated and no longer needs special handling

Signed-off-by: Jan Rodák <hony.com@seznam.cz>

Author: Honny1

test/system/254-podman-quadlet-multi.bats

@@ -8,7 +8,6 @@ load helpers.systemd
 
 function setup() {
     skip_if_remote "podman quadlet is not implemented for remote setup yet"
-    skip_if_rootless_cgroupsv1 "Can't use --cgroups=split w/ CGv1 (issue 17456, wontfix)"
     skip_if_journald_unavailable "Needed for RHEL. FIXME: we might be able to re-enable a subset of tests."
 
     basic_setup