Remove shadow

(Old svn revision: 11361)

themes/default/themerc

-active_text_color=#FFFFFF
 button_offset=5
 button_spacing=0
 full_width_title=true
 title_horizontal_offset=0
 title_vertical_offset_active=1
 title_vertical_offset_inactive=1
-title_shadow_active=true
+title_shadow_active=false
 title_shadow_inactive=false