os: move tmpDir() to EOL

The tmpDir alias was deprecated in 7.0.0

PR-URL: #31169
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

doc/api/deprecations.md

@@ -519,14 +519,18 @@ The `Server.listenFD()` method was deprecated and removed. Please use
 ### DEP0022: `os.tmpDir()`
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: REPLACEME
+    description: End-of-Life.
   - version: v7.0.0
     pr-url: https://github.com/nodejs/node/pull/6739
     description: Runtime deprecation.
 -->
 
-Type: Runtime
+Type: End-of-Life
 
-The `os.tmpDir()` API is deprecated. Please use [`os.tmpdir()`][] instead.
+The `os.tmpDir()` API iws deprecated in Node.js 7.0.0 and has since been
+removed. Please use [`os.tmpdir()`][] instead.
 
 <a id="DEP0023"></a>
 ### DEP0023: `os.getNetworkInterfaces()`

lib/os.js

@@ -28,7 +28,6 @@ const {
 
 const { safeGetenv } = internalBinding('credentials');
 const constants = internalBinding('constants').os;
-const { deprecate } = require('internal/util');
 const isWindows = process.platform === 'win32';
 
 const {
@@ -83,9 +82,6 @@ getUptime[SymbolToPrimitive] = () => getUptime();
 
 const kEndianness = isBigEndian ? 'BE' : 'LE';
 
-const tmpDirDeprecationMsg =
-  'os.tmpDir() is deprecated. Use os.tmpdir() instead.';
-
 const avgValues = new Float64Array(3);
 
 function loadavg() {
@@ -285,9 +281,6 @@ module.exports = {
   type: getOSType,
   userInfo,
   uptime: getUptime,
-
-  // Deprecated APIs
-  tmpDir: deprecate(tmpdir, tmpDirDeprecationMsg, 'DEP0022')
 };
 
 ObjectDefineProperties(module.exports, {