Remove ValidName regex

This regex was already deprecated.

Validation happens inside the Metadata Validate function for the
name instead of using this regex.

Signed-off-by: Matt Farina <matt.farina@suse.com>

pkg/action/action.go

@@ -23,7 +23,6 @@ import (
 	"os"
 	"path"
 	"path/filepath"
-	"regexp"
 	"strings"
 
 	"github.com/pkg/errors"
@@ -63,21 +62,6 @@ var (
 	errPending = errors.New("another operation (install/upgrade/rollback) is in progress")
 )
 
-// ValidName is a regular expression for resource names.
-//
-// DEPRECATED: This will be removed in Helm 4, and is no longer used here. See
-// pkg/lint/rules.validateMetadataNameFunc for the replacement.
-//
-// According to the Kubernetes help text, the regular expression it uses is:
-//
-//	[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*
-//
-// This follows the above regular expression (but requires a full string match, not partial).
-//
-// The Kubernetes documentation is here, though it is not entirely correct:
-// https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
-var ValidName = regexp.MustCompile(`^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$`)
-
 // Configuration injects the dependencies that all actions share.
 type Configuration struct {
 	// RESTClientGetter is an interface that loads Kubernetes clients.