Mirroring #2066783: Remove quicksketch from MAINTAINERS.txt, I need to recuse myself from core system or module that I either no longer understand (Path system), or have time to maintain (contact.module, path.module) given that maintaining a core module is shifting away from being a hobby to a responsibility, and I can no longer make that commitment.

I do however still have interested in being a maintainer of the Token system, and that's probably the only thing I'll have the time to work on.