[gnome-documents] preview: Remove 'raised' style class

[Debarshi Ray <debarshir src gnome org>]

commit 085c27f9312d764a4104f154d626f02d379f25da
Author: Alessandro Bono <abono gnome org>
Date:   Tue Dec 8 14:21:40 2015 +0100

    preview: Remove 'raised' style class
    
    It is a NOP in current Adwaita.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=759088

 src/preview.js |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/preview.js b/src/preview.js
index 16c0d0b..e5b5d41 100644
--- a/src/preview.js
+++ b/src/preview.js
@@ -954,7 +954,6 @@ const PreviewSearchbar = new Lang.Class({
 
         let controlsBox = new Gtk.Box({ orientation: Gtk.Orientation.HORIZONTAL });
         controlsBox.get_style_context().add_class('linked');
-        controlsBox.get_style_context().add_class('raised');
         this._searchContainer.add(controlsBox);
 
         this._prev = new Gtk.Button({ action_name: 'app.find-prev' });