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/shell.js

@@ -1,5 +1,7 @@
 'use strict';
 
+exports = module.exports = shell;
+
 const assert = require('node:assert'),
     BoxError = require('./boxerror.js'),
     child_process = require('node:child_process'),
@@ -8,8 +10,6 @@ const assert = require('node:assert'),
     safe = require('safetydance'),
     _ = require('./underscore.js');
 
-exports = module.exports = shell;
-
 function shell(tag) {
     assert.strictEqual(typeof tag, 'string');