hw/display/blizzard.c: Delete unused function blizzard_rgb2yuv

The function blizzard_rgb2yuv() is unused; delete it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1410723223-17711-2-git-send-email-peter.maydell@linaro.org

hw/display/blizzard.c

@@ -134,14 +134,6 @@ static const int blizzard_iformat_bpp[0x10] = {
     0, 0, 0, 0, 0, 0,
 };
 
-static inline void blizzard_rgb2yuv(int r, int g, int b,
-                int *y, int *u, int *v)
-{
-    *y = 0x10 + ((0x838 * r + 0x1022 * g + 0x322 * b) >> 13);
-    *u = 0x80 + ((0xe0e * b - 0x04c1 * r - 0x94e * g) >> 13);
-    *v = 0x80 + ((0xe0e * r - 0x0bc7 * g - 0x247 * b) >> 13);
-}
-
 static void blizzard_window(BlizzardState *s)
 {
     DisplaySurface *surface = qemu_console_surface(s->con);