SUNRPC: Remove unused declaration rpc_modcount()

These declarations are never implemented since the beginning of git
history. Remove these, then merge the two #ifdef block for
simplification.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

include/linux/sunrpc/stats.h

@@ -43,22 +43,6 @@ struct net;
 #ifdef CONFIG_PROC_FS
 int			rpc_proc_init(struct net *);
 void			rpc_proc_exit(struct net *);
-#else
-static inline int rpc_proc_init(struct net *net)
-{
-	return 0;
-}
-
-static inline void rpc_proc_exit(struct net *net)
-{
-}
-#endif
-
-#ifdef MODULE
-void			rpc_modcount(struct inode *, int);
-#endif
-
-#ifdef CONFIG_PROC_FS
 struct proc_dir_entry *	rpc_proc_register(struct net *,struct rpc_stat *);
 void			rpc_proc_unregister(struct net *,const char *);
 void			rpc_proc_zero(const struct rpc_program *);
@@ -69,7 +53,14 @@ void			svc_proc_unregister(struct net *, const char *);
 void			svc_seq_show(struct seq_file *,
 				     const struct svc_stat *);
 #else
+static inline int rpc_proc_init(struct net *net)
+{
+	return 0;
+}
 
+static inline void rpc_proc_exit(struct net *net)
+{
+}
 static inline struct proc_dir_entry *rpc_proc_register(struct net *net, struct rpc_stat *s) { return NULL; }
 static inline void rpc_proc_unregister(struct net *net, const char *p) {}
 static inline void rpc_proc_zero(const struct rpc_program *p) {}