${COMPILER_VERSION} < 40300

[Eric van Gyzen]

> If I were to clean up obsolete ${COMPILER_VERSION} tests in the tree, 
> which ones should I keep?  I would probably confine it to head, so I 
> could prune quite a few.

Thanks for the feedback, everyone.  If you're interested:

	https://reviews.freebsd.org/D24802

Eric