net/glib2-networking: Remove systemd service

Stumbled across /usr/local/lib/systemd/ the other day, so here's the
clean up.

The configure script has no knob for it so simply remove the files in
post-install.

`make plist' works fine and also strips two old directories.

Feedback? Comments?

Index: Makefile
===================================================================
RCS file: /cvs/ports/net/glib2-networking/Makefile,v
retrieving revision 1.48
diff -u -p -r1.48 Makefile
--- Makefile 26 Jul 2017 22:45:27 -0000 1.48
+++ Makefile 31 Jul 2017 16:58:29 -0000
@@ -5,7 +5,7 @@ COMMENT= network-related gio modules fo
GNOME_VERSION= 2.50.0
GNOME_PROJECT= glib-networking
PKGNAME= glib2-networking-${GNOME_VERSION}
-REVISION= 3
+REVISION= 4

CATEGORIES= net

@@ -36,5 +36,6 @@ TEST_IS_INTERACTIVE= x11

post-install:
rm ${PREFIX}/lib/gio/modules/*.{a,la}
+ rm -rf ${PREFIX}/lib/systemd

.include <bsd.port.mk>
Index: pkg/PLIST
===================================================================
RCS file: /cvs/ports/net/glib2-networking/pkg/PLIST,v
retrieving revision 1.20
diff -u -p -r1.20 PLIST
--- pkg/PLIST 8 Apr 2017 10:39:22 -0000 1.20
+++ pkg/PLIST 31 Jul 2017 16:58:29 -0000
@@ -2,9 +2,6 @@
lib/gio/modules/libgiognomeproxy.so
lib/gio/modules/libgiognutls.so
lib/gio/modules/libgiolibproxy.so
-lib/systemd/
-lib/systemd/user/
-lib/systemd/user/glib-pacrunner.service
@bin libexec/glib-pacrunner
share/dbus-1/
share/dbus-1/services/
@@ -31,8 +28,6 @@ share/locale/eu/LC_MESSAGES/glib-network
share/locale/fa/LC_MESSAGES/glib-networking.mo
share/locale/fi/LC_MESSAGES/glib-networking.mo
share/locale/fr/LC_MESSAGES/glib-networking.mo
-share/locale/fur/
-share/locale/fur/LC_MESSAGES/
share/locale/fur/LC_MESSAGES/glib-networking.mo
share/locale/gd/LC_MESSAGES/glib-networking.mo
share/locale/gl/LC_MESSAGES/glib-networking.mo