Gtkrc remove menu arrow icon.

Hello I find a way for remove menu arrow icon that, for those that use global menu, looks very ugly. It's a small hack in original gtkrc file, here u can see what I do:

style "elementary-panel"
{
 xthickness = 4
 ythickness = 0

 bg_pixmap[NORMAL] = "/Panel/panel.png" # Disable for normal panel backgrounds.

 engine "murrine" {
  textstyle = 1
  roundness = 0
 }
 engine "pixmap"
 {
 image
 {
  function = ARROW
  recolorable = TRUE
  overlay_file = "/Panel/arrow-blank.png" # Added a transparent arrow.
  overlay_border = {0,0,0,0}
  overlay_stretch = FALSE
  arrow_direction = DOWN
 }
}
}