tools: strange workaround in doctools

[vsemozhetbyt]

1. tools/doc/package.json requires "js-yaml": "^3.5.2":

node/tools/doc/package.json

Line 13 in 6fd8022

"js-yaml": "^3.5.2"

2. tools/doc/node_modules/js-yaml contains only dummy index.js with reexport of js-yaml from ESLint dependency (so the version from the above-mentioned requirement cannot be checked anyway?):

node/tools/doc/node_modules/js-yaml/index.js

Lines 8 to 14 in 6fd8022

	const realJSYaml = path.resolve(
	__dirname, '..', '..', '..', // tools/
	'node_modules',
	'eslint',
	'node_modules',
	'js-yaml'
	);

Why not delete js-yaml from tools/doc/package.json, then delete tools/doc/node_modules/js-yaml and then require js-yaml straight from the ESLint dependency? It is only required here:

node/tools/doc/common.js

Line 3 in 20509eb

const yaml = require('js-yaml');