[gtk+/gtk-3-22] Revert "Make it possible to set style classes for label links"

[Matthias Clasen <matthiasc src gnome org>]

commit bea4c0898dd2579dfc1cda238df1685277ae4b6c
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 5 19:40:23 2017 -0500

    Revert "Make it possible to set style classes for label links"
    
    This reverts commit 9a2527b36122321c5aeaed8526747d54d0f4c0c8.
    
    This needs more work to have a chance of working properly.

 gtk/gtklabel.c |   12 ++----------
 1 files changed, 2 insertions(+), 10 deletions(-)
---
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 9e2b002..612ad3f 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -229,11 +229,9 @@
  *
  * Since 2.18, GTK+ supports markup for clickable hyperlinks in addition
  * to regular Pango markup. The markup for links is borrowed from HTML,
- * using the `<a>` with “href“, “title“ and “class“ attributes. GTK+ renders links
+ * using the `<a>` with “href“ and “title“ attributes. GTK+ renders links
  * similar to the way they appear in web browsers, with colored, underlined
- * text. The “title“ attribute is displayed as a tooltip on the link. The “class“
- * attribute is used as style class on the CSS node for the link, it is supported
- * since 3.22.7.
+ * text. The “title“ attribute is displayed as a tooltip on the link.
  *
  * An example looks like this:
  *
@@ -2401,7 +2399,6 @@ start_element_handler (GMarkupParseContext  *context,
       GtkLabelLink *link;
       const gchar *uri = NULL;
       const gchar *title = NULL;
-      const gchar *class = NULL;
       gboolean visited = FALSE;
       gint line_number;
       gint char_number;
@@ -2419,8 +2416,6 @@ start_element_handler (GMarkupParseContext  *context,
             uri = attribute_values[i];
           else if (strcmp (attr, "title") == 0)
             title = attribute_values[i];
-          else if (strcmp (attr, "class") == 0)
-            class = attribute_values[i];
           else
             {
               g_set_error (error,
@@ -2468,9 +2463,6 @@ start_element_handler (GMarkupParseContext  *context,
       link->cssnode = gtk_css_node_new ();
       gtk_css_node_set_name (link->cssnode, I_("link"));
       gtk_css_node_set_parent (link->cssnode, widget_node);
-      if (class)
-        gtk_css_node_add_class (link->cssnode, g_quark_from_string (class));
-
       state = gtk_css_node_get_state (widget_node);
       if (visited)
         state |= GTK_STATE_FLAG_VISITED;