[gtk/wip/chergert/quartz4u] macos: cleanup meson.build

[Christian Hergert <chergert src gnome org>]

commit 1c5301464f506cdabfcd25bb1654896e1e6581f2
Author: Christian Hergert <chergert redhat com>
Date:   Thu Jun 18 12:36:24 2020 -0700

    macos: cleanup meson.build

 gdk/macos/meson.build | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/gdk/macos/meson.build b/gdk/macos/meson.build
index 56a1604f52..e657af0d74 100644
--- a/gdk/macos/meson.build
+++ b/gdk/macos/meson.build
@@ -2,7 +2,6 @@ gdk_macos_sources = files([
   'edgesnapping.c',
 
   'gdkdisplaylinksource.c',
-  'GdkMacosWindow.c',
   'gdkmacoscairocontext.c',
   'gdkmacosclipboard.c',
   'gdkmacoscursor.c',
@@ -22,7 +21,7 @@ gdk_macos_sources = files([
   'GdkMacosBaseView.c',
   'GdkMacosCairoView.c',
   'GdkMacosCairoSubview.c',
-  # 'GdkMacosGLView.c',
+  'GdkMacosWindow.c',
 ])
 
 gdk_macos_public_headers = files([