It's easy to live your life to keep Google happy. 301 redirects have been an important part of online website life.

But then I do accept this perspective (if it's within your call to take this risk). Just don't 301-redirect it. Let the search engines figure it out for themselves.

If a user has a bookmark to an old resource, then it's a liability for you to try to keep your web of 301s working.

KISS!