refactor builder in kubectl factory

pkg/kubectl/cmd/apply.go

@@ -198,7 +198,7 @@ func RunApply(f cmdutil.Factory, cmd *cobra.Command, out, errOut io.Writer, opti
 		return err
 	}
 
-	mapper, typer, err := f.UnstructuredObject()
+	mapper, _, err := f.UnstructuredObject()
 	if err != nil {
 		return err
 	}
@@ -213,8 +213,7 @@ func RunApply(f cmdutil.Factory, cmd *cobra.Command, out, errOut io.Writer, opti
 	// include the uninitialized objects by default if --prune is true
 	// unless explicitly set --include-uninitialized=false
 	includeUninitialized := cmdutil.ShouldIncludeUninitialized(cmd, options.Prune)
-	r := f.NewBuilder().
-		Unstructured(f.UnstructuredClientForMapping, mapper, typer).
+	r := f.NewUnstructuredBuilder().
 		Schema(schema).
 		ContinueOnError().
 		NamespaceParam(cmdNamespace).DefaultNamespace().