[gtk] testsuite: Remove GDK_DEBUG=misc

[Matthias Clasen <matthiasc src gnome org>]

commit 3dafdcbab022ba98c54f9571c584c4cdde1a8f40
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 18 16:37:18 2020 -0400

    testsuite: Remove GDK_DEBUG=misc
    
    This snuck in by accident in recent ci setup
    changes, and breaks the test runs by adding
    stray output.

 testsuite/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/testsuite/meson.build b/testsuite/meson.build
index 3c725a530c..1e98362cc9 100644
--- a/testsuite/meson.build
+++ b/testsuite/meson.build
@@ -9,7 +9,7 @@ diff = find_program('diff', required: true)
 common_env = [
   'GIO_USE_VOLUME_MONITOR=unix',
   'GSETTINGS_BACKEND=memory',
-  'GDK_DEBUG=default-settings:misc',
+  'GDK_DEBUG=default-settings',
   'GTK_CSD=1',
   'G_ENABLE_DIAGNOSTIC=0',
   'GSETTINGS_SCHEMA_DIR=@0@'.format(gtk_schema_build_dir),