nfsd4: nfsd4_replay_cache_entry should be static

This isn't actually used anywhere else.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index a07d98c..a08b58d 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1596,7 +1596,7 @@
  * The sequence operation is not cached because we can use the slot and
  * session values.
  */
-__be32
+static __be32
 nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp,
 			 struct nfsd4_sequence *seq)
 {