net: Remove unused parameter of xfrm_gen_index()

In commit 2518c7c2b3d7f0a6b302b4efe17c911f8dd4049f ("[XFRM]: Hash
policies when non-prefixed."), the last use of xfrm_gen_policy() first
argument was removed, but the argument was left behind in the
prototype.

Signed-off-by: Arnaud Ebalard <[email protected]>
Acked-by: Herbert Xu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
1 file changed