Clean up unused variables and functions (#5818)

Signed-off-by: Fish-pro <zechun.chen@daocloud.io>

pkg/cmd/cli/debug/debug.go

@@ -69,11 +69,6 @@ func (o *option) bindFlags(flags *pflag.FlagSet) {
 	flags.BoolVar(&o.verbose, "verbose", false, "When it's set to true the debug messages by crashd will be printed during execution.  Default value is false.")
 }
 
-func (o *option) asCrashdArgs() string {
-	return fmt.Sprintf("output=%s,namespace=%s,basedir=%s,backup=%s,restore=%s,kubeconfig=%s,kubecontext=%s",
-		o.outputPath, o.namespace, o.baseDir, o.backup, o.restore, o.kubeconfigPath, o.kubeContext)
-}
-
 func (o *option) asCrashdArgMap() exec.ArgMap {
 	return exec.ArgMap{
 		"cmd":         o.currCmd,