cluster: remove xdg runtime warning message (#6461)

playing around with this a bit,
i'm not sure it's really actionable.

Signed-off-by: Nick Santos <[email protected]>

Author: nicks

internal/controllers/core/cluster/reconciler.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
-	"sync"
 	"time"
 
 	"github.com/docker/docker/client"
@@ -40,8 +39,6 @@ import (
 
 const ArchUnknown string = "unknown"
 
-var runtimeDirWarning = sync.Once{}
-
 const (
 	clientInitBackoff        = 30 * time.Second
 	clientHealthPollInterval = 15 * time.Second
@@ -402,13 +399,6 @@ func (r *Reconciler) openFrozenKubeConfigFile(ctx context.Context, nn types.Name
 		}
 	}
 
-	// From the spec: emit a warning if the runtime dir isn't available.
-	// https://specifications.freedesktop.org/basedir-spec/latest/
-	runtimeDirWarning.Do(func() {
-		logger.Get(ctx).Warnf(
-			"XDG Runtime directory not available. Storing temp kubeconfigs in: %s. Error: %v", path, err)
-	})
-
 	path, err = r.base.StateFile(
 		filepath.Join(string(r.apiServerName), "cluster", fmt.Sprintf("%s.yml", nn.Name)))
 	if err != nil {