[openssl/openssl] 30adf6: Revert unnecessary PKCS7_verify() performance opti...

[Tomas Mraz]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/openssl
  Commit: 30adf6d209002fab688aa76e313ac077e4b2f88c
      https://github.openssl.org/openssl/openssl/commit/30adf6d209002fab688aa76e313ac077e4b2f88c
  Author: Nikolas <knv418 at gmail.com>
  Date:   2022-06-02 (Thu, 02 Jun 2022)

  Changed paths:
    M crypto/pkcs7/pk7_smime.c

  Log Message:
  -----------
  Revert unnecessary PKCS7_verify() performance optimization

It appears that creating temporary read-only mem BIO won't increase performance significally
anymore. But it increases PKCS7_verify() complexity, so should be removed.

Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit at gmail.com>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16590)