v6.x: build: remove node.dsYM directory
It was added by mistake in https://github.com/nodejs/node/commit/d283704cd6cb08ef012de60b6857cb2c153eee63
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
It was added by mistake in https://github.com/nodejs/node/commit/d283704cd6cb08ef012de60b6857cb2c153eee63