NFS: Remove nfs_release()

And call nfs_file_clear_open_context() directly.  This makes it obvious
that nfs_file_release() will always return 0.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index cc4fa1e..7538a85 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -82,7 +82,8 @@
 	dprintk("NFS: release(%pD2)\n", filp);
 
 	nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
-	return nfs_release(inode, filp);
+	nfs_file_clear_open_context(filp);
+	return 0;
 }
 EXPORT_SYMBOL_GPL(nfs_file_release);