chore: remove unused file [skip ci]

build/azure-pipelines/computeYarnCacheKey.js

@@ -1,24 +0,0 @@
-const fs = require("fs");
-const crypto = require("crypto");
-const path = require("path");
-const { dirs } = require('../../vscode/build/npm/dirs');
-
-const ROOT = path.join(__dirname, '../../vscode');
-
-const shasum = crypto.createHash('sha1');
-
-shasum.update(fs.readFileSync(path.join(ROOT, '.yarnrc')));
-shasum.update(fs.readFileSync(path.join(ROOT, 'remote/.yarnrc')));
-
-// Add `yarn.lock` files
-for (let dir of dirs) {
-    const yarnLockPath = path.join(ROOT, dir, 'yarn.lock');
-    shasum.update(fs.readFileSync(yarnLockPath));
-}
-
-// Add any other command line arguments
-for (let i = 2; i < process.argv.length; i++) {
-    shasum.update(process.argv[i]);
-}
-
-process.stdout.write(shasum.digest('hex'));