Revert "Add no-use-before-define linter rule"

This reverts commit fdcc5d68a2.

Unfortunately, this requires us to move exports to the bottom.
This in turn causes circular dep issues and also access of
exports.GLOBAL_VAR in the global context

src/storage/s3.js

@@ -1,5 +1,32 @@
 'use strict';
 
+exports = module.exports = {
+    setup,
+    teardown,
+    cleanup,
+
+    verifyConfig,
+    removePrivateFields,
+    injectPrivateFields,
+
+    getAvailableSize,
+    getStatus,
+
+    upload,
+    exists,
+    download,
+    copy,
+    copyDir,
+
+    listDir,
+
+    remove,
+    removeDir,
+
+    // Used to mock AWS
+    _chunk: chunk
+};
+
 const assert = require('node:assert'),
     async = require('async'),
     BoxError = require('../boxerror.js'),
@@ -662,29 +689,3 @@ function injectPrivateFields(newConfig, currentConfig) {
     newConfig._provider = currentConfig._provider;
 }
 
-exports = module.exports = {
-    setup,
-    teardown,
-    cleanup,
-
-    verifyConfig,
-    removePrivateFields,
-    injectPrivateFields,
-
-    getAvailableSize,
-    getStatus,
-
-    upload,
-    exists,
-    download,
-    copy,
-    copyDir,
-
-    listDir,
-
-    remove,
-    removeDir,
-
-    // Used to mock AWS
-    _chunk: chunk
-};