[pango/fix-gtk2-crash] Fix a crash in gtk2

[Matthias Clasen <matthiasc src gnome org>]

commit 89ca7a4299b873746e3b6c1e1260ee8430b63fd4
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jun 10 09:41:03 2020 -0400

    Fix a crash in gtk2
    
    Apparently, gtk2 assumes that calling pango_layout_set_attributes
    guarantees that the attribute list gains a ref.
    
    Fixes: #479

 pango/pango-layout.c | 5 -----
 1 file changed, 5 deletions(-)
---
diff --git a/pango/pango-layout.c b/pango/pango-layout.c
index 3c138327..b07c8487 100644
--- a/pango/pango-layout.c
+++ b/pango/pango-layout.c
@@ -689,11 +689,6 @@ pango_layout_set_attributes (PangoLayout   *layout,
   if (!attrs && !layout->attrs)
     return;
 
-  /* Also both empty */
-  if (!_pango_attr_list_has_attributes (layout->attrs) &&
-      !_pango_attr_list_has_attributes (attrs))
-    return;
-
   if (layout->attrs &&
       pango_attr_list_equal (layout->attrs, attrs))
     return;