diff --git a/packages/core/strapi/lib/Strapi.js b/packages/core/strapi/lib/Strapi.js
index 1a20334be7..dffe96a40f 100644
--- a/packages/core/strapi/lib/Strapi.js
+++ b/packages/core/strapi/lib/Strapi.js
@@ -14,7 +14,7 @@ const loadModules = require('./core/loaders/load-modules');
 const utils = require('./utils');
 const bootstrap = require('./core/loaders/bootstrap');
 const initializeMiddlewares = require('./middlewares');
-const createStrapiFs = require('./core/fs');
+const createStrapiFs = require('./services/fs');
 const createEventHub = require('./services/event-hub');
 const createWebhookRunner = require('./services/webhook-runner');
 const { webhookModel, createWebhookStore } = require('./services/webhook-store');
@@ -34,7 +34,6 @@ const modulesRegistry = require('./core/registries/modules');
 const pluginsRegistry = require('./core/registries/plugins');
 const createConfigProvider = require('./core/registries/config');
 const loadPlugins = require('./core/load-plugins');
-// const { nameToSlug } = require('../../utils/lib');
 
 const LIFECYCLES = {
   REGISTER: 'register',
diff --git a/packages/core/strapi/lib/core/app-configuration/index.js b/packages/core/strapi/lib/core/app-configuration/index.js
index 18b50e6438..50a0bc2af5 100644
--- a/packages/core/strapi/lib/core/app-configuration/index.js
+++ b/packages/core/strapi/lib/core/app-configuration/index.js
@@ -16,17 +16,8 @@ const loadConfigDir = require('./config-loader');
 const { version: strapiVersion } = require(path.join(__dirname, '../../../package.json'));
 
 const CONFIG_PATHS = {
-  admin: 'admin',
-  api: 'api',
   config: 'config',
-  controllers: 'controllers',
-  models: 'models',
-  plugins: 'plugins',
-  policies: 'policies',
-  tmp: '.tmp',
-  services: 'services',
   static: 'public',
-  validators: 'validators',
   views: 'views',
 };
 
diff --git a/packages/core/strapi/lib/core/loaders/walk.js b/packages/core/strapi/lib/core/loaders/walk.js
deleted file mode 100644
index ca6b45c626..0000000000
--- a/packages/core/strapi/lib/core/loaders/walk.js
+++ /dev/null
@@ -1,27 +0,0 @@
-'use strict';
-
-const assert = require('assert');
-const path = require('path');
-const fse = require('fs-extra');
-
-module.exports = function walk(dir, { loader } = {}) {
-  assert(typeof loader === 'function', 'opts.loader must be a function');
-
-  const root = {};
-  const paths = fse.readdirSync(dir, { withFileTypes: true });
-
-  for (let fd of paths) {
-    const { name } = fd;
-    const fullPath = dir + path.sep + name;
-
-    if (fd.isDirectory()) {
-      root[name] = walk(fullPath, { loader });
-    } else {
-      const ext = path.extname(name);
-      const key = path.basename(name, ext);
-      root[key] = loader(fullPath);
-    }
-  }
-
-  return root;
-};
diff --git a/packages/core/strapi/lib/core/fs.js b/packages/core/strapi/lib/services/fs.js
similarity index 100%
rename from packages/core/strapi/lib/core/fs.js
rename to packages/core/strapi/lib/services/fs.js