ARM: 9228/1: vfp: kill vfp_flush/release_thread()

Those functions are removed since 2006 commit d6551e88
("[ARM] Add thread_notify infrastructure").
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

arch/arm/include/asm/fpstate.h

@@ -46,9 +46,6 @@ union vfp_state {
 	struct vfp_hard_struct	hard;
 };
 
-extern void vfp_flush_thread(union vfp_state *);
-extern void vfp_release_thread(union vfp_state *);
-
 #define FP_HARD_SIZE 35
 
 struct fp_hard_struct {