crypto: talitos - drop icv_ool

icv_ool is not used anymore, drop it.

Fixes: e345177d

 ("crypto: talitos - fix AEAD processing.")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>