[pitivi] mediafilespreviewer: Remove the override of mouse button clicks on the slider

[Jean-FranÃois Fortin Tam <jfft src gnome org>]

commit 8d38758e62349541608c93feff17188591ec8f80
Author: Jean-FranÃois Fortin Tam <nekohayo gmail com>
Date:   Tue Oct 9 14:55:48 2012 -0400

    mediafilespreviewer: Remove the override of mouse button clicks on the slider
    
    This was a hack that will not be needed (and will not work) in GTK 3.6:
    GTK slider now does what's expected by default and ignores middle-clicks.

 pitivi/mediafilespreviewer.py |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/mediafilespreviewer.py b/pitivi/mediafilespreviewer.py
index 8aabbde..2bfa906 100644
--- a/pitivi/mediafilespreviewer.py
+++ b/pitivi/mediafilespreviewer.py
@@ -295,7 +295,6 @@ class PreviewWidget(Gtk.VBox, Loggable):
         self.preview_video.hide()
 
     def _on_seeker_press_cb(self, widget, event):
-        event.button = 2
         if event.type == Gdk.EventType.BUTTON_PRESS:
             self.countinuous_seek = True
             if self.is_playing: