[gtk] css: Remove an unused function

[Matthias Clasen <matthiasc src gnome org>]

commit 94b1e72aa3278201258361d1baefa3a837eab773
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jan 14 16:42:31 2020 -0500

    css: Remove an unused function
    
    _gtk_css_style_property_get_mask_affecting was superseded
    by GtkCssStyleChange back in 2015.

 gtk/gtkcssstyleproperty.c        | 30 ------------------------------
 gtk/gtkcssstylepropertyprivate.h |  3 ---
 2 files changed, 33 deletions(-)
---
diff --git a/gtk/gtkcssstyleproperty.c b/gtk/gtkcssstyleproperty.c
index bdc7fb853e..7a7b77c084 100644
--- a/gtk/gtkcssstyleproperty.c
+++ b/gtk/gtkcssstyleproperty.c
@@ -372,33 +372,3 @@ _gtk_css_style_property_get_initial_value (GtkCssStyleProperty *property)
 
   return property->initial_value;
 }
-
-/**
- * _gtk_css_style_property_get_mask_affecting:
- * @flags: the flags that are affected
- *
- * Computes a bitmask for all properties that have at least one of @flags
- * set.
- *
- * Returns: (transfer full): A #GtkBitmask with the bit set for every
- *          property that has at least one of @flags set.
- */
-GtkBitmask *
-_gtk_css_style_property_get_mask_affecting (GtkCssAffects affects)
-{
-  GtkBitmask *result;
-  guint i;
-
-  result = _gtk_bitmask_new ();
-
-  for (i = 0; i < _gtk_css_style_property_get_n_properties (); i++)
-    {
-      GtkCssStyleProperty *prop = _gtk_css_style_property_lookup_by_id (i);
-
-      if (_gtk_css_style_property_get_affects (prop) & affects)
-        result = _gtk_bitmask_set (result, i, TRUE);
-    }
-
-  return result;
-}
-
diff --git a/gtk/gtkcssstylepropertyprivate.h b/gtk/gtkcssstylepropertyprivate.h
index 1403dee181..2258bec314 100644
--- a/gtk/gtkcssstylepropertyprivate.h
+++ b/gtk/gtkcssstylepropertyprivate.h
@@ -80,9 +80,6 @@ void                    _gtk_css_style_property_print_value     (GtkCssStyleProp
                                                                  GtkCssValue            *value,
                                                                  GString                *string);
 
-GtkBitmask *            _gtk_css_style_property_get_mask_affecting
-                                                                (GtkCssAffects           affects);
-
 /* XXX - find a better place for these */
 GtkCssValue * gtk_css_font_family_value_parse (GtkCssParser *parser);
 GtkCssValue * gtk_css_font_size_value_parse   (GtkCssParser *parser);