nfsd: remove unused defines

At least one of these is actually wrong anyway.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

include/linux/nfsd/const.h

@@ -14,11 +14,6 @@
 #include <linux/nfs3.h>
 #include <linux/nfs4.h>
 
-/*
- * Maximum protocol version supported by knfsd
- */
-#define NFSSVC_MAXVERS		3
-
 /*
  * Maximum blocksizes supported by daemon under various circumstances.
  */
@@ -42,14 +37,6 @@
  */
 #define NFSD_BUFSIZE		((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)
 
-#ifdef CONFIG_NFSD_V4
-# define NFSSVC_XDRSIZE		NFS4_SVC_XDRSIZE
-#elif defined(CONFIG_NFSD_V3)
-# define NFSSVC_XDRSIZE		NFS3_SVC_XDRSIZE
-#else
-# define NFSSVC_XDRSIZE		NFS2_SVC_XDRSIZE
-#endif
-
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_NFSD_CONST_H */