remove extra guards

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 6337772..6a37af7 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -7192,13 +7192,11 @@
                                   - transform->maclen % cipher_info->block_size;
             }
 
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
             if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
             {
                 transform->minlen += transform->ivlen;
             }
             else
-#endif
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
                 ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
@@ -7269,7 +7267,6 @@
     }
 
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_MAC)
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
     /* For HMAC-based ciphersuites, initialize the HMAC transforms.
        For AEAD-based ciphersuites, there is nothing to do here. */
     if( mac_key_len != 0 )
@@ -7281,7 +7278,6 @@
         if( ret != 0 )
             goto end;
     }
-#endif
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_MAC */
 
     ((void) mac_dec);