This reverts commit e388deef07a2f95475979642e5fe1ac3b3790ea8.

Nothing uses them anymore.

The target's don't exist by this name until after the files have been
read.

The matplotlib test covers this already.

The common superbuild will handle this.

Now required by matplotlib.

On Red Hat-alikes, lib64/ is used; the superbuild always uses lib/.