containers/unpause: remove cgroupsv1 support

Signed-off-by: Lokesh Mandvekar <[email protected]>

Author: lsm5

cmd/podman/containers/unpause.go

@@ -2,7 +2,6 @@ package containers
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"os"
 	"strings"
@@ -12,9 +11,7 @@ import (
 	"github.com/containers/podman/v5/cmd/podman/utils"
 	"github.com/containers/podman/v5/cmd/podman/validate"
 	"github.com/containers/podman/v5/pkg/domain/entities"
-	"github.com/containers/podman/v5/pkg/rootless"
 	"github.com/spf13/cobra"
-	"go.podman.io/common/pkg/cgroups"
 	"go.podman.io/common/pkg/completion"
 )
 
@@ -88,18 +85,9 @@ func init() {
 }
 
 func unpause(_ *cobra.Command, args []string) error {
-	var (
-		errs utils.OutputErrors
-	)
+	var errs utils.OutputErrors
 	args = utils.RemoveSlash(args)
 
-	if rootless.IsRootless() && !registry.IsRemote() {
-		cgroupv2, _ := cgroups.IsCgroup2UnifiedMode()
-		if !cgroupv2 {
-			return errors.New("unpause is not supported for cgroupv1 rootless containers")
-		}
-	}
-
 	for _, cidFile := range unpauseCidFiles {
 		content, err := os.ReadFile(cidFile)
 		if err != nil {