Temporarily disable systemd test for CGroups V2

Revert this one CGroups V2 support for systemd containers is
added.

Signed-off-by: Matthew Heon <mheon@redhat.com>

test/e2e/systemd_test.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/containers/libpod/pkg/cgroups"
 	. "github.com/containers/libpod/test/utils"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -81,6 +82,12 @@ WantedBy=multi-user.target
 	})
 
 	It("podman run container with systemd PID1", func() {
+		cgroupsv2, err := cgroups.IsCgroup2UnifiedMode()
+		Expect(err).To(BeNil())
+		if cgroupsv2 {
+			Skip("systemd test does not work in cgroups V2 mode yet")
+		}
+
 		systemdImage := "fedora"
 		pull := podmanTest.Podman([]string{"pull", systemdImage})
 		pull.WaitWithDefaultTimeout()