[PATCH] cifs: remove dead code

cifs provides two dummy functions 'sess_auth_lanman' and
'sess_auth_kerberos' for the case in which the respective
features are not defined. However, the caller is also under
an #ifdef, so we just get warnings about unused code:

fs/cifs/sess.c:1109:1: warning: 'sess_auth_kerberos' defined but not used [-Wunused-function]
 sess_auth_kerberos(struct sess_data *sess_data)

Removing the dead functions gets rid of the warnings without
any downsides that I can see.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 07fe97ac6b0c..ab0fda6e8e58 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c

@@ -745,14 +745,6 @@ out:
        sess_free_buffer(sess_data);
 }

-#else
-
-static void
-sess_auth_lanman(struct sess_data *sess_data)
-{
-       sess_data->result = -EOPNOTSUPP;
-       sess_data->func = NULL;
-}
 #endif

 static void

@@ -1103,15 +1095,6 @@ out:
        ses->auth_key.response = NULL;
 }

-#else
-
-static void
-sess_auth_kerberos(struct sess_data *sess_data)
-{
-       cifs_dbg(VFS, "Kerberos negotiated but upcall support disabled!\n");
-       sess_data->result = -ENOSYS;
-       sess_data->func = NULL;
-}
 #endif /* ! CONFIG_CIFS_UPCALL */

 /*