gtk-sharp: remove

GTK2 version of gtk-shark3, unused in pkgsrc, dead upstream since 2017,
has build problems.

As proposed on pkgsrc-users.

Author: 0-wiz-0

doc/CHANGES-2025

@@ -1,4 +1,4 @@
-$NetBSD: CHANGES-2025,v 1.2343 2025/03/26 22:51:01 wiz Exp $
+$NetBSD: CHANGES-2025,v 1.2344 2025/03/26 22:52:07 wiz Exp $
 
 Changes to the packages collection and infrastructure in 2025:
 
@@ -3027,3 +3027,4 @@ Changes to the packages collection and infrastructure in 2025:
 	Removed lang/oo2c [wiz 2025-03-26]
 	Updated mail/exim to 4.98.2 [abs 2025-03-26]
 	Removed lang/sather [wiz 2025-03-26]
+	Removed x11/gtk-sharp successor x11/gtk-sharp3 [wiz 2025-03-26]

doc/TODO

@@ -1,4 +1,4 @@
-$NetBSD: TODO,v 1.25563 2025/03/26 18:41:41 wiz Exp $
+$NetBSD: TODO,v 1.25564 2025/03/26 22:52:08 wiz Exp $
 
 Suggested new packages
 ======================
@@ -978,6 +978,7 @@ For possible Perl packages updates, see http://www.NetBSD.org/~wiz/perl.html
 	o nap-1.5.3
 	o nas-auscope-1.9.4
 	o ncview-2.1.8
+	o neovim-0.11
 	o netramet-50
 	o newmail-1.0.2
 	o nicotine-plus-3.2.9

x11/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.1061 2025/02/17 10:39:55 wiz Exp $
+# $NetBSD: Makefile,v 1.1062 2025/03/26 22:52:07 wiz Exp $
 #
 
 COMMENT=	Packages to support the X Window System
@@ -75,7 +75,6 @@ SUBDIR+=	gst-plugins1-ximagesrc
 SUBDIR+=	gtk
 SUBDIR+=	gtk+extra
 SUBDIR+=	gtk-mac-integration
-SUBDIR+=	gtk-sharp
 SUBDIR+=	gtk-sharp3
 SUBDIR+=	gtk2
 SUBDIR+=	gtk2+extra