[gtksourceview] Revert "build: fix GTK version check"

[Christian Hergert <chergert src gnome org>]

commit 9770cd96a09447d66cc1474aafdc03041446ae06
Author: Christian Hergert <chergert redhat com>
Date:   Fri Apr 9 08:16:17 2021 -0700

    Revert "build: fix GTK version check"
    
    This reverts commit 03bbd109938bb26ccb712fc0df13f35d9ddd8f72.

 meson.build | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index aed58b4f..0cb4bf8c 100644
--- a/meson.build
+++ b/meson.build
@@ -118,9 +118,10 @@ glib_version_arr = glib_req_version.split('.')
 glib_major_version = glib_version_arr[0]
 glib_minor_version = glib_version_arr[1]
 
+# XXX: Override until GTK 4 is released
 gtk_version_arr = gtk_req_version.split('.')
-gtk_major_version = gtk_version_arr[0]
-gtk_minor_version = gtk_version_arr[1]
+gtk_major_version = '4' # gtk_version_arr[0]
+gtk_minor_version = '0' # gtk_version_arr[1]
 
 # Configurations
 add_project_arguments([