remove buttons from themes when they are using the defaults already for clarity

[chaz/openbox] / themes / Natura / openbox-3 / shade_hover.xbm

#define shade_hover_width 8
#define shade_hover_height 8
static unsigned char shade_hover_bits[] = {
   0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00 };