staging: sm750fb: remove unused field in lynx_cursor

The lynx_share field in lynx_cursor structure is never used and can be
removed.
Signed-off-by: NMike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/sm750.c

@@ -790,7 +790,6 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index)
 	crtc->cursor.size = crtc->cursor.maxH * crtc->cursor.maxW * 2 / 8;
 	crtc->cursor.vstart = share->pvMem + crtc->cursor.offset;
 
-	crtc->cursor.share = share;
 	memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
 	if (!g_hwcursor) {
 		lynxfb_ops.fb_cursor = NULL;

drivers/staging/sm750fb/sm750.h

@@ -134,8 +134,6 @@ struct lynx_cursor {
 	int offset;
 	/* mmio addr of hw cursor */
 	volatile char __iomem *mmio;
-	/* the lynx_share of this adaptor */
-	struct lynx_share *share;
 };
 
 struct lynxfb_crtc {