rootless, search: do not create a new userns

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

Closes: #1360
Approved by: vrothberg

cmd/podman/main.go

@@ -32,6 +32,7 @@ var cmdsNotRequiringRootless = map[string]bool{
 	"login":   true,
 	"logout":  true,
 	"kill":    true,
+	"search":  true,
 	"stop":    true,
 }
 

cmd/podman/search.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/containers/image/docker"
 	"github.com/containers/libpod/cmd/podman/formats"
-	"github.com/containers/libpod/cmd/podman/libpodruntime"
 	"github.com/containers/libpod/libpod/common"
 	sysreg "github.com/containers/libpod/pkg/registries"
 	"github.com/docker/distribution/reference"
@@ -108,12 +107,6 @@ func searchCmd(c *cli.Context) error {
 		return err
 	}
 
-	runtime, err := libpodruntime.GetRuntime(c)
-	if err != nil {
-		return errors.Wrapf(err, "could not get runtime")
-	}
-	defer runtime.Shutdown(false)
-
 	format := genSearchFormat(c.String("format"))
 	opts := searchOpts{
 		format:   format,