dev-python/packaging: drop pkg_preinst

https://bugs.gentoo.org/574002

Package-Manager: portage-2.3.1_p4

dev-python/packaging/packaging-16.6.ebuild

@@ -32,16 +32,3 @@ PDEPEND="
 python_test() {
 	py.test --capture=no --strict -v || die
 }
-
-pkg_preinst() {
-	# Remove this in the next version bump
-	_cleanup() {
-		local pyver=$("${PYTHON}" -c "from distutils.sysconfig import get_python_version; print(get_python_version())")
-		local egginfo="${ROOT%/}$(python_get_sitedir)/${P}-py${pyver}.egg-info"
-		if [[ -d ${egginfo} ]]; then
-			echo rm -r "${egginfo}"
-			rm -r "${egginfo}" || die "Failed to remove egg-info directory"
-		fi
-	}
-	python_foreach_impl _cleanup
-}