docs: fixes to payload integration guide (#13261)

www/apps/resources/generated/generated-commerce-modules-sidebar.mjs

@@ -11517,14 +11517,6 @@ const generatedgeneratedCommerceModulesSidebarSidebar = {
               "path": "https://docs.medusajs.com/resources/how-to-tutorials/tutorials/product-reviews",
               "children": []
             },
-            {
-              "loaded": true,
-              "isPathHref": true,
-              "type": "ref",
-              "title": "Integrate Payload",
-              "path": "https://docs.medusajs.com/resources/integrations/guides/payload",
-              "children": []
-            },
             {
               "loaded": true,
               "isPathHref": true,