Remove qsort copy in hemidal

[delphij]

Summary

Remove qsort copy in hemidal.

Test Plan

(This change should be no-op as we do not define NEED_QSORT).

[delphij]

This is related to bugs.freebsd.org/213922

[emaste]

So this is just compiling to an empty qsort.o today, and the removal is to prevent it from being discovered in grep -r etc.?

Certainly removing it from the Makefile makes sense. I'm indifferent to deleting the contrib-like copy of the file itself.

[delphij]

In D10814#224949, @emaste wrote:

So this is just compiling to an empty qsort.o today, and the removal is to prevent it from being discovered in grep -r etc.?

Certainly removing it from the Makefile makes sense. I'm indifferent to deleting the contrib-like copy of the file itself.

Ok, I'm omitting the deleting part.