nfsd: get rid of unused function definition

commit 557ce2646e775f6bda734dd92b10d4780874b9c7
"nfsd41: replace page based DRC with buffer based DRC"
have remove unused nfsd4_set_statp, but miss the function definition.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/cache.h

@@ -84,12 +84,4 @@ int	nfsd_cache_lookup(struct svc_rqst *);
 void	nfsd_cache_update(struct svc_rqst *, int, __be32 *);
 int	nfsd_reply_cache_stats_open(struct inode *, struct file *);
 
-#ifdef CONFIG_NFSD_V4
-void	nfsd4_set_statp(struct svc_rqst *rqstp, __be32 *statp);
-#else  /* CONFIG_NFSD_V4 */
-static inline void nfsd4_set_statp(struct svc_rqst *rqstp, __be32 *statp)
-{
-}
-#endif /* CONFIG_NFSD_V4 */
-
 #endif /* NFSCACHE_H */