kunitconfig: cleaned up config

Ran `make ARCH=um savedefconfig`, config is now very simple with changes
like: https://team-review.git.corp.google.com/c/kunit/linux/+/306883 and
https://team-review.git.corp.google.com/c/kunit/linux/+/306881

Change-Id: I6605088a4b87e3642a275271b40c2007bd3e5751
1 file changed
tree: 00c7f27b587b1e18da21ec1967949ca9acbd7760
  1. kunitconfig