Remove outdated DEBUG flags.

Add -DBIO_DEBUG to --strict-warnings.
Remove comments about outdated debugging ifdef guards.
Remove md_rand ifdef guarding an assert; it doesn't seem used.
Remove the conf guards in conf_api since we use OPENSSL_assert, not assert.
For pkcs12 stuff put OPENSSL_ in front of the macro name.
Merge TLS_DEBUG into SSL_DEBUG.
Various things just turned on/off asserts, mainly for checking non-NULL
arguments, which is now removed: camellia, bn_ctx, crypto/modes.
Remove some old debug code, that basically just printed things to stderr:
  DEBUG_PRINT_UNKNOWN_CIPHERSUITES, DEBUG_ZLIB, OPENSSL_RI_DEBUG,
  RL_DEBUG, RSA_DEBUG, SCRYPT_DEBUG.
Remove OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL.

Reviewed-by: Richard Levitte <levitte@openssl.org>

ssl/s3_lib.c

@@ -1627,23 +1627,6 @@ static const SSL_CIPHER ssl3_ciphers[] = {
      },
 #endif
 
-#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
-    /* Cipher FF */
-    {
-     1,
-     "SCSV",
-     SSL3_CK_SCSV,
-     0,
-     0,
-     0,
-     0,
-     0,
-     0,
-     0,
-     0,
-     0},
-#endif
-
 #ifndef OPENSSL_NO_EC
 
     /* Cipher C006 */
@@ -3743,10 +3726,6 @@ const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p)
     id = 0x03000000 | ((uint32_t)p[0] << 8L) | (uint32_t)p[1];
     c.id = id;
     cp = OBJ_bsearch_ssl_cipher_id(&c, ssl3_ciphers, SSL3_NUM_CIPHERS);
-#ifdef DEBUG_PRINT_UNKNOWN_CIPHERSUITES
-    if (cp == NULL)
-        fprintf(stderr, "Unknown cipher ID %x\n", (p[0] << 8) | p[1]);
-#endif
     return cp;
 }