Enable lpr printing agian.

While configure happily reported lpr is enabled and the module was
installed. The print code wasn't configured to use lpr. The reason
for this is that the configure of this code moved from the gtk/Makefile
to configure. Remove the now obsolete sed line.

Reported by:	dinoex@
Tested by:	dinoex@

x11-toolkits/gtk30/Makefile

@@ -5,7 +5,7 @@
 
 PORTNAME=	gtk
 PORTVERSION=	3.16.7
-PORTREVISION?=	0
+PORTREVISION?=	1
 CATEGORIES=	x11-toolkits
 MASTER_SITES=	GNOME/sources/gtk+/${PORTVERSION:C/^([0-9]+\.[0-9]+).*/\1/}
 PKGNAMESUFFIX=	3
@@ -84,8 +84,6 @@ TYPEAHEAD_EXTRA_PATCHES=${FILESDIR}/extra-gtk_gtkfilechooserwidget.c \
 post-patch:
 	@${REINPLACE_CMD} -e 's|[{]libdir[}]/locale|{datadir}/locale|g' \
 		${WRKSRC}/configure
-	@${REINPLACE_CMD} -e 's|file,cups|file,cups,lpr|' \
-		${WRKSRC}/gtk/Makefile.in
 
 pre-configure:
 # .if !exists() evaluates too early before cairo has a chance to be installed

x11-toolkits/gtk30/files/patch-configure

@@ -0,0 +1,12 @@
+--- configure.orig	2015-12-27 22:02:19.433821000 +0100
++++ configure	2015-12-27 22:02:39.743841000 +0100
+@@ -26046,9 +26046,7 @@
+ if test "$have_cups" = "yes"; then
+   GTK_PRINT_BACKENDS="$GTK_PRINT_BACKENDS,cups"
+ fi
+-if test "$have_papi" != "yes" -a "$have_cups" != "yes"; then
+   GTK_PRINT_BACKENDS="$GTK_PRINT_BACKENDS,lpr"
+-fi
+ if test "$have_cloudprint" = "yes"; then
+   GTK_PRINT_BACKENDS="$GTK_PRINT_BACKENDS,cloudprint"
+ fi