devel/llvm1[234567]: enable qsort sanatizer wrapper

I'd disabled it in 10.0.0 when it was found to be broken.  It was then
fixed in LLVM 12, but the patch was never never removed and I propogated
it along for several year.

Reported by:	Brad Smith <[email protected]>
See also:	https://github.com/llvm/llvm-project/issues/46176