Remove dead pix24bpp variable

Signed-off-by: Adam Jackson <ajax@redhat.com>

src/fbdev.c

@@ -76,12 +76,6 @@ enum { FBDEV_ROTATE_NONE=0, FBDEV_ROTATE_CW=270, FBDEV_ROTATE_UD=180, FBDEV_ROTA
 
 /* -------------------------------------------------------------------- */
 
-/*
- * This is intentionally screen-independent.  It indicates the binding
- * choice made in the first PreInit.
- */
-static int pix24bpp = 0;
-
 #define FBDEV_VERSION		4000
 #define FBDEV_NAME		"FBDEV"
 #define FBDEV_DRIVER_NAME	"fbdev"
@@ -493,10 +487,6 @@ FBDevPreInit(ScrnInfoPtr pScrn, int flags)
 		return FALSE;
 	xf86PrintDepthBpp(pScrn);
 
-	/* Get the depth24 pixmap format */
-	if (pScrn->depth == 24 && pix24bpp == 0)
-		pix24bpp = xf86GetBppFromDepth(pScrn, 24);
-
 	/* color weight */
 	if (pScrn->depth > 8) {
 		rgb zeros = { 0, 0, 0 };