net: xfrm: xfrm_algo: Remove unused function

Remove the function aead_entries() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index debe733..12e82a5 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -561,11 +561,6 @@
 },
 };
 
-static inline int aead_entries(void)
-{
-	return ARRAY_SIZE(aead_list);
-}
-
 static inline int aalg_entries(void)
 {
 	return ARRAY_SIZE(aalg_list);