crypto: user - remove redundant reporting functions

The acomp, akcipher, and kpp algorithm types already have .report
methods defined, so there's no need to duplicate this functionality in
crypto_user itself; the duplicate functions are actually never executed.
Remove the unused code.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>