cifs: get rid of unused arguments of CIFSSMBWrite()

they used to be used, but...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 95dab43..4ead72a 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -392,8 +392,7 @@
 			unsigned int *nbytes, char **buf,
 			int *return_buf_type);
 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
-			unsigned int *nbytes, const char *buf,
-			const char __user *ubuf, const int long_op);
+			unsigned int *nbytes, const char *buf);
 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 			unsigned int *nbytes, struct kvec *iov, const int nvec);
 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,