media-gfx/nvidia-cg-toolkit: drop old pkg_postinst(), bug #705258

Drop lexicographical version compare.

Closes: https://bugs.gentoo.org/705258
Package-Manager: Portage-2.3.89, Repoman-2.3.20
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

media-gfx/nvidia-cg-toolkit/nvidia-cg-toolkit-3.1.0013-r5.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=5
@@ -129,11 +129,3 @@ multilib_src_install_all() {
 	eprefixify "${T}"/80cgc-opt
 	doenvd "${T}"/80cgc-opt
 }
-
-pkg_postinst() {
-	if [[ ${REPLACING_VERSIONS} < 2.1.0016 ]]; then
-		einfo "Starting with ${CATEGORY}/${PN}-2.1.0016, ${PN} is installed in"
-		einfo "${DEST}. Packages might have to add something like:"
-		einfo "  append-cppflags -I${DEST}/include"
-	fi
-}