nfs: remove unnecessary NFS_NEED_* defines

Thanks to Robert Day for pointing out that these two defines are unused.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Trond Myklebust <trond@netapp.com>Trond Myklebust <trond@netapp.com>
Cc: Neil Brown <neilb@suse.de>
Cc: "Robert P. J. Day" <rpjday@crashcourse.ca>
diff --git a/include/linux/nfs3.h b/include/linux/nfs3.h
index 7f11fa5..539f3b5 100644
--- a/include/linux/nfs3.h
+++ b/include/linux/nfs3.h
@@ -96,7 +96,7 @@
 #define MOUNTPROC3_UMNTALL	4
  
 
-#if defined(__KERNEL__) || defined(NFS_NEED_KERNEL_TYPES)
+#if defined(__KERNEL__)
 
 /* Number of 32bit words in post_op_attr */
 #define NFS3_POST_OP_ATTR_WORDS		22