Python was the main culprit and now that the erroneous/redundant
include of crypt.h (and separately, -lcrypt linkage) has been
dropped (and hence no longer affecting any consumers of Python.h
and libpython).
Hence, we can drop this as it was causing _more_ issues
than it prevented as folks were still using FEATURES="collision-protect"
instead of FEATURES="unmerge-orphans" (the news item and postinst
did mention this, though).
Bug: https://bugs.gentoo.org/802210
Signed-off-by: Sam James <sam@gentoo.org>