Remove finish_mac_length from SSL3_ENC_METHOD.

It's unused.

Change-Id: I234c19990758ad761a72d5b0abe404a8583705a7
Reviewed-on: https://boringssl-review.googlesource.com/3768
Reviewed-by: Adam Langley <agl@google.com>

include/openssl/tls1.h

diff --git a/include/openssl/tls1.h b/include/openssl/tls1.h
index ef00b68..9d89a71 100644
--- a/include/openssl/tls1.h
+++ b/include/openssl/tls1.h
@@ -689,8 +689,6 @@
 #define TLS_CT_RSA_FIXED_ECDH 65
 #define TLS_CT_ECDSA_FIXED_ECDH 66
 
-#define TLS1_FINISH_MAC_LENGTH 12
-
 #define TLS_MD_MAX_CONST_SIZE 20
 #define TLS_MD_CLIENT_FINISH_CONST "client finished"
 #define TLS_MD_CLIENT_FINISH_CONST_SIZE 15

ssl/d1_lib.c

diff --git a/ssl/d1_lib.c b/ssl/d1_lib.c
index 6d2f77f..fd92fae 100644
--- a/ssl/d1_lib.c
+++ b/ssl/d1_lib.c
@@ -92,7 +92,6 @@
   tls1_generate_master_secret,
   tls1_change_cipher_state,
   tls1_final_finish_mac,
-  TLS1_FINISH_MAC_LENGTH,
   tls1_cert_verify_mac,
   TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
   TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
@@ -111,7 +110,6 @@
   tls1_generate_master_secret,
   tls1_change_cipher_state,
   tls1_final_finish_mac,
-  TLS1_FINISH_MAC_LENGTH,
   tls1_cert_verify_mac,
   TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
   TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,

ssl/s3_lib.c

diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index 72a02d4..1b342c0 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -563,7 +563,6 @@
     tls1_generate_master_secret,
     tls1_change_cipher_state,
     ssl3_final_finish_mac,
-    MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
     ssl3_cert_verify_mac,
     SSL3_MD_CLIENT_FINISHED_CONST, 4,
     SSL3_MD_SERVER_FINISHED_CONST, 4,

ssl/ssl_locl.h

diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h
index 5cc1cfc..9986bd3 100644
--- a/ssl/ssl_locl.h
+++ b/ssl/ssl_locl.h
@@ -571,7 +571,6 @@
   int (*generate_master_secret)(SSL *, uint8_t *, const uint8_t *, size_t);
   int (*change_cipher_state)(SSL *, int);
   int (*final_finish_mac)(SSL *, const char *, int, uint8_t *);
-  int finish_mac_length;
   int (*cert_verify_mac)(SSL *, int, uint8_t *);
   const char *client_finished_label;
   int client_finished_label_len;

ssl/t1_lib.c

diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index 967dad7..20b8c99 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -133,7 +133,6 @@
     tls1_generate_master_secret,
     tls1_change_cipher_state,
     tls1_final_finish_mac,
-    TLS1_FINISH_MAC_LENGTH,
     tls1_cert_verify_mac,
     TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
     TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
@@ -152,7 +151,6 @@
     tls1_generate_master_secret,
     tls1_change_cipher_state,
     tls1_final_finish_mac,
-    TLS1_FINISH_MAC_LENGTH,
     tls1_cert_verify_mac,
     TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
     TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
@@ -171,7 +169,6 @@
     tls1_generate_master_secret,
     tls1_change_cipher_state,
     tls1_final_finish_mac,
-    TLS1_FINISH_MAC_LENGTH,
     tls1_cert_verify_mac,
     TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
     TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,