Use fs.rm() instead of rimraf

A regression occurred in 0.2.2 which can be reproduced using:

```js
const assert = require('assert');
const tmp = require('tmp');
tmp.dir({ unsafeCleanup: true }, (err, path, cleanup) => {
  assert.ifError(err);
  cleanup(assert.ifError);
});
```
This works with 0.2.1.  With 0.2.2 it fails with:

    /path/to/tmp/node-tmp/lib/tmp.js:358
            return removeFunction(fileOrDirName, next || function() {});
                   ^

    TypeError: removeFunction is not a function
        at _cleanupCallback (/path/to/tmp/node-tmp/lib/tmp.js:358:16)
        at /path/to/tmp/node-tmp/repro.js:5:3
        at _dirCreated (/path/to/tmp/node-tmp/lib/tmp.js:207:7)
        at FSReqCallback.oncomplete (node:fs:192:23)

This occurs because 00bb5b2 upgraded
the rimraf dependency from ^3.0.0 to ^5.0.5 without handling the change
to a `Promise`-based API in 4.0.0
(isaacs/rimraf@a71e7f9)
or the removal of the default export in 5.0.0
(isaacs/rimraf@c7a3fd4).

This commit fixes the issue by dropping the `rimraf` dependency in favor
of `fs.rm({recursive: true})`.

Fixes: 00bb5b2 ("Update rimraf and drop old Node compatibility")
Fixes: #295
Signed-off-by: Kevin Locke <kevin@kevinlocke.name>

Author: kevinoid

docs/global.html

@@ -45,8 +45,8 @@ <h3> </h3>
     <section>
         <article><h1>Tmp</h1>
 <p>A simple temporary file and directory creator for <a href="http://nodejs.org/">node.js.</a></p>
-<p><a href="https://travis-ci.org/raszi/node-tmp"><img src="https://travis-ci.org/raszi/node-tmp.svg?branch=master" alt="Build Status"></a>
-<a href="https://david-dm.org/raszi/node-tmp"><img src="https://david-dm.org/raszi/node-tmp.svg" alt="Dependencies"></a>
+<p><a href="https://github.com/raszi/node-tmp/actions/workflows/node.js.yml"><img src="https://img.shields.io/github/actions/workflow/status/raszi/node-tmp/node.js.yml?branch=master" alt="Build Status"></a>
+<a href="https://libraries.io/github/raszi/node-tmp"><img src="https://img.shields.io/librariesio/github/raszi/node-tmp" alt="Dependencies"></a>
 <a href="https://badge.fury.io/js/tmp"><img src="https://badge.fury.io/js/tmp.svg" alt="npm version"></a>
 <a href="https://raszi.github.io/node-tmp/"><img src="https://img.shields.io/badge/API-documented-brightgreen.svg" alt="API documented"></a>
 <a href="https://snyk.io/test/npm/tmp"><img src="https://snyk.io/test/npm/tmp/badge.svg" alt="Known Vulnerabilities"></a></p>
@@ -84,7 +84,7 @@ <h2>An Important Note on Previously Undocumented Breaking Changes</h2>
 <h2>An Important Note on Compatibility</h2>
 <p>See the <a href="./CHANGELOG.md">CHANGELOG</a> for more information.</p>
 <h3>Version 0.2.2</h3>
-<p>Since version 0.2.2, all support for node version &lt; 12 has been dropped.</p>
+<p>Since version 0.2.2, all support for node version &lt;= 12 has been dropped.</p>
 <h3>Version 0.1.0</h3>
 <p>Since version 0.1.0, all support for node versions &lt; 0.10.0 has been dropped.</p>
 <p>Most importantly, any support for earlier versions of node-tmp was also dropped.</p>
@@ -338,7 +338,7 @@ <h2><a href="index.html">Home</a></h2><h3>Global</h3><ul><li><a href="global.htm
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.11</a> on Fri Aug 26 2022 22:37:40 GMT+0200 (Mitteleuropäische Sommerzeit)
+    Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 4.0.2</a> on Wed Feb 28 2024 16:13:00 GMT-0700 (Mountain Standard Time)
 </footer>
 
 <script> prettyPrint(); </script>

docs/index.html

@@ -42,7 +42,6 @@ <h1 class="page-title">Source: tmp.js</h1>
 const path = require('path');
 const crypto = require('crypto');
 const _c = { fs: fs.constants, os: os.constants };
-const rimraf = require('rimraf');
 
 /*
  * The working inner variables.
@@ -71,12 +70,44 @@ <h1 class="page-title">Source: tmp.js</h1>
   _removeObjects = [],
 
   // API change in fs.rmdirSync leads to error when passing in a second parameter, e.g. the callback
-  FN_RMDIR_SYNC = fs.rmdirSync.bind(fs),
-  FN_RIMRAF_SYNC = rimraf.sync;
+  FN_RMDIR_SYNC = fs.rmdirSync.bind(fs);
 
 let
   _gracefulCleanup = false;
 
+/**
+ * Recursively remove a directory and its contents.
+ *
+ * @param {string} dirPath path of directory to remove
+ * @param {Function} callback
+ * @private
+ */
+function rimraf(dirPath, callback) {
+  // fs.rm() was added in Node.js 14.14.
+  // Use deprecated rmdir({recursive: true}) on older versions.
+  if (!fs.rm) {
+    return fs.rmdir(dirPath, { recursive: true }, callback);
+  }
+
+  return fs.rm(dirPath, { recursive: true }, callback);
+}
+
+/**
+ * Recursively remove a directory and its contents, synchronously.
+ *
+ * @param {string} dirPath path of directory to remove
+ * @private
+ */
+function FN_RIMRAF_SYNC(dirPath) {
+  // fs.rm() was added in Node.js 14.14.
+  // Use deprecated rmdir({recursive: true}) on older versions.
+  if (!fs.rm) {
+    return fs.rmdirSync(dirPath, { recursive: true });
+  }
+
+  return fs.rmSync(dirPath, { recursive: true });
+}
+
 /**
  * Gets a temporary file name.
  *
@@ -807,7 +838,7 @@ <h2><a href="index.html">Home</a></h2><h3>Global</h3><ul><li><a href="global.htm
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.11</a> on Fri Aug 26 2022 22:37:40 GMT+0200 (Mitteleuropäische Sommerzeit)
+    Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 4.0.2</a> on Wed Feb 28 2024 16:13:00 GMT-0700 (Mountain Standard Time)
 </footer>
 
 <script> prettyPrint(); </script>

docs/tmp.js.html

@@ -14,7 +14,6 @@ const os = require('os');
 const path = require('path');
 const crypto = require('crypto');
 const _c = { fs: fs.constants, os: os.constants };
-const rimraf = require('rimraf');
 
 /*
  * The working inner variables.
@@ -43,12 +42,44 @@ const
   _removeObjects = [],
 
   // API change in fs.rmdirSync leads to error when passing in a second parameter, e.g. the callback
-  FN_RMDIR_SYNC = fs.rmdirSync.bind(fs),
-  FN_RIMRAF_SYNC = rimraf.sync;
+  FN_RMDIR_SYNC = fs.rmdirSync.bind(fs);
 
 let
   _gracefulCleanup = false;
 
+/**
+ * Recursively remove a directory and its contents.
+ *
+ * @param {string} dirPath path of directory to remove
+ * @param {Function} callback
+ * @private
+ */
+function rimraf(dirPath, callback) {
+  // fs.rm() was added in Node.js 14.14.
+  // Use deprecated rmdir({recursive: true}) on older versions.
+  if (!fs.rm) {
+    return fs.rmdir(dirPath, { recursive: true }, callback);
+  }
+
+  return fs.rm(dirPath, { recursive: true }, callback);
+}
+
+/**
+ * Recursively remove a directory and its contents, synchronously.
+ *
+ * @param {string} dirPath path of directory to remove
+ * @private
+ */
+function FN_RIMRAF_SYNC(dirPath) {
+  // fs.rm() was added in Node.js 14.14.
+  // Use deprecated rmdir({recursive: true}) on older versions.
+  if (!fs.rm) {
+    return fs.rmdirSync(dirPath, { recursive: true });
+  }
+
+  return fs.rmSync(dirPath, { recursive: true });
+}
+
 /**
  * Gets a temporary file name.
  *