Remove info field on EVP_PKEY_ASN1_METHOD.

Nothing ever reads it.

Change-Id: Id375c461aa2feb6877a14e19eb2daefec7a03f89
Reviewed-on: https://boringssl-review.googlesource.com/5345
Reviewed-by: Adam Langley <agl@google.com>

crypto/evp/internal.h

@@ -90,7 +90,6 @@ struct evp_pkey_asn1_method_st {
   unsigned long pkey_flags;
 
   char *pem_str;
-  char *info;
 
   int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub);
   int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);

crypto/evp/p_dsa_asn1.c

@@ -554,7 +554,6 @@ const EVP_PKEY_ASN1_METHOD dsa_asn1_meth = {
   0,
 
   "DSA",
-  "OpenSSL DSA method",
 
   dsa_pub_decode,
   dsa_pub_encode,

crypto/evp/p_ec_asn1.c

@@ -542,7 +542,6 @@ const EVP_PKEY_ASN1_METHOD ec_asn1_meth = {
   EVP_PKEY_EC,
   0,
   "EC",
-  "OpenSSL EC algorithm",
 
   eckey_pub_decode,
   eckey_pub_encode,

crypto/evp/p_rsa_asn1.c

@@ -707,7 +707,6 @@ const EVP_PKEY_ASN1_METHOD rsa_asn1_meth = {
   ASN1_PKEY_SIGPARAM_NULL,
 
   "RSA",
-  "OpenSSL RSA method",
 
   rsa_pub_decode,
   rsa_pub_encode,