Revert "Add more accessors."

This reverts commit cacdfcb2479984d9bfcc79b623118d8af6fea169.

Conflicts:
	crypto/x509/x509.h

Reviewed-by: Dr Stephen Henson <steve@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Revert "Add accessor for x509.cert_info."

This reverts commit 519ad9b3845c475d29db8b84b59bde7edecb4e70.

Reviewed-by: Dr Stephen Henson <steve@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add i2d_re_X509_tbs

i2d_re_X509_tbs re-encodes the TBS portion of the certificate.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Dr Stephen Henson <steve@openssl.org>
(cherry picked from commit 95b1752cc7531e4b609aea166f2db1c155ab5bdd)
make update

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
Note i2d_re_X509_tbs and related changes in CHANGES

Reviewed-by: Tim Hudson <tjh@openssl.org>