crypto: twofish-x86_64-3way - remove duplicated glue code and use shared glue code from glue_helper

Now that shared glue code is available, convert twofish-x86_64-3way to use it. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: jkivilin