[gtk+] csslookup: Remove useless cast

[Timm Bäder <baedert src gnome org>]

commit 2f9b22243a087c224f25a72f0c028ed46d043b4e
Author: Timm Bäder <mail baedert org>
Date:   Thu Aug 4 17:32:05 2016 +0200

    csslookup: Remove useless cast
    
    The style passed to _gtk_css_lookup_resolve is already a
    GtkCssStaticStyle.

 gtk/gtkcsslookup.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkcsslookup.c b/gtk/gtkcsslookup.c
index 217d9a3..17e3f85 100644
--- a/gtk/gtkcsslookup.c
+++ b/gtk/gtkcsslookup.c
@@ -119,7 +119,7 @@ _gtk_css_lookup_resolve (GtkCssLookup            *lookup,
     {
       if (lookup->values[i].value ||
           _gtk_bitmask_get (lookup->missing, i))
-        gtk_css_static_style_compute_value (GTK_CSS_STATIC_STYLE (style),
+        gtk_css_static_style_compute_value (style,
                                             provider,
                                             parent_style,
                                             i,