gtk-sharp2: remove package

Uses GTK2 which is not supported anymore.

The repository already has another package with GTK3 support
(gtk-sharp).

srcpkgs/gtk-sharp2/patches/ftbfs.patch

@@ -1,11 +0,0 @@
---- a/sample/test/TestRange.cs
-+++ b/sample/test/TestRange.cs
-@@ -9,6 +9,8 @@
- using System;
- 
- using Gtk;
-+// disambiguate, Gtk.Range vs System.Range
-+using Range=Gtk.Range;
- 
- namespace WidgetViewer {
- 

srcpkgs/gtk-sharp2/template

@@ -1,29 +0,0 @@
-# Template file for 'gtk-sharp2'
-pkgname=gtk-sharp2
-version=2.12.45
-revision=2
-build_style=gnu-configure
-configure_args="--disable-static"
-hostmakedepends="pkg-config automake libtool mono"
-makedepends="mono-devel gtk+-devel libglade-devel"
-maintainer="John <me@johnnynator.dev>"
-short_desc="Graphical User Interface Toolkit for mono and .Net (Gtk#)"
-license="LGPL-2.1-only"
-homepage="https://www.mono-project.com/docs/gui/gtksharp/"
-distfiles="https://download.mono-project.com/sources/gtk-sharp212/gtk-sharp-${version}.tar.gz"
-checksum=02680578e4535441064aac21d33315daa009d742cab8098ac8b2749d86fffb6a
-
-if [ "$XBPS_TARGET_ENDIAN" = "be" ]; then
-	_have_mdoc="no"
-elif [[ $XBPS_TARGET_MACHINE == ppc* ]]; then
-	_have_mdoc="no"
-fi
-
-pre_configure() {
-	# mdoc is not shipped on ppc64le and all BE because it needs roslyn
-	if [ "$_have_mdoc" = "no" ]; then
-		sed "s/enable_monodoc=yes/enable_monodoc=no/" -i configure.in
-	fi
-
-	autoreconf -i
-}

srcpkgs/removed-packages/template

@@ -139,6 +139,7 @@ replaces="
  gst1-python<=1.18.3_1
  gtkhtml-devel<=4.10.0_1
  gtkhtml<=4.10.0_1
+ gtk-sharp2<=2.12.45_2
  guile1.8-devel<=1.8.8_3
  guile1.8<=1.8.8_3
  gx-go<=1.9.0_1