SDL has internally fixed shenanigans related to wakelocking through DBus
from inside sandboxes from around August 2022, so we can now remove the
workaround we used since 2021.
See https://github.com/libsdl-org/SDL/issues/7809.
Disabling CPUinfo triggers a bug in SDL's audio subsystem, which breaks
SDL's JACK output on Linux. We're lucky it hasn't broken anything else.