[28.x] remove some uses of AddTrustVerificationFlags

These were already removed in master, so adding an extra commit
in the 28.x branch to remove their use.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/image/build.go

@@ -145,7 +145,7 @@ func NewBuildCommand(dockerCli command.Cli) *cobra.Command {
 	flags.SetAnnotation("target", annotation.ExternalURL, []string{"https://docs.docker.com/reference/cli/docker/buildx/build/#target"})
 	flags.StringVar(&options.imageIDFile, "iidfile", "", "Write the image ID to the file")
 
-	command.AddTrustVerificationFlags(flags, &options.untrusted, dockerCli.ContentTrustEnabled())
+	flags.BoolVar(&options.untrusted, "disable-content-trust", !dockerCli.ContentTrustEnabled(), "Skip image verification")
 
 	flags.StringVar(&options.platform, "platform", os.Getenv("DOCKER_DEFAULT_PLATFORM"), "Set platform if server is multi-platform capable")
 	flags.SetAnnotation("platform", "version", []string{"1.38"})

cli/command/plugin/install.go

@@ -31,7 +31,7 @@ type pluginOptions struct {
 
 func loadPullFlags(dockerCli command.Cli, opts *pluginOptions, flags *pflag.FlagSet) {
 	flags.BoolVar(&opts.grantPerms, "grant-all-permissions", false, "Grant all permissions necessary to run the plugin")
-	command.AddTrustVerificationFlags(flags, &opts.untrusted, dockerCli.ContentTrustEnabled())
+	flags.BoolVar(&opts.untrusted, "disable-content-trust", !dockerCli.ContentTrustEnabled(), "Skip image verification")
 }
 
 func newInstallCommand(dockerCli command.Cli) *cobra.Command {

cli/command/plugin/push.go

@@ -33,7 +33,7 @@ func newPushCommand(dockerCli command.Cli) *cobra.Command {
 
 	flags := cmd.Flags()
 
-	command.AddTrustSigningFlags(flags, &opts.untrusted, dockerCli.ContentTrustEnabled())
+	flags.BoolVar(&opts.untrusted, "disable-content-trust", !dockerCli.ContentTrustEnabled(), "Skip image signing")
 
 	return cmd
 }