test: remove common.projectDir

common.projectDir is used in one test, so it's not so common. Remove
from common module to the one test file that needs it.

PR-URL: #17781
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Author: Trott

test/common/README.md

@@ -340,11 +340,6 @@ original state after calling [`common.hijackStdOut()`][].
 
 Path to the 'root' directory. either `/` or `c:\\` (windows)
 
-### projectDir
-* [<String>]
-
-Path to the project directory.
-
 ### skip(msg)
 * `msg` [<String>]
 

test/common/index.js

@@ -69,7 +69,6 @@ exports.enoughTestCpu = Array.isArray(cpus) &&
                         (cpus.length > 1 || cpus[0].speed > 999);
 
 exports.rootDir = exports.isWindows ? 'c:\\' : '/';
-exports.projectDir = path.resolve(__dirname, '..', '..');
 
 exports.buildType = process.config.target_defaults.default_configuration;
 

test/doctool/test-make-doc.js

@@ -11,7 +11,7 @@ const assert = require('assert');
 const fs = require('fs');
 const path = require('path');
 
-const apiPath = path.resolve(common.projectDir, 'out', 'doc', 'api');
+const apiPath = path.resolve(__dirname, '..', '..', 'out', 'doc', 'api');
 const docs = fs.readdirSync(apiPath);
 assert.ok(docs.includes('_toc.html'));