games-fps/chocolate-doom: Remove pkg_* definitions

The pkg_preinst, pkg_postinst, and pkg_postrm are already overloaded by
the xdg eclass.

Package-Manager: Portage-2.3.67, Repoman-2.3.14
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>

games-fps/chocolate-doom/chocolate-doom-3.0.0.ebuild

@@ -31,15 +31,3 @@ src_configure() {
 		$(use_with libsamplerate) \
 		$(use_with png libpng)
 }
-
-pkg_preinst() {
-	xdg_pkg_preinst
-}
-
-pkg_postinst() {
-	xdg_pkg_postinst
-}
-
-pkg_postrm() {
-	xdg_pkg_postrm
-}