fix coding style issues

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 266cf77..c45a1b8 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1945,19 +1945,15 @@
 
         /* Check size_t overflow */
         if( session->ticket_len > SIZE_MAX - needed )
-        {
             return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-        }
 
-        needed += session->ticket_len;    /* ticket */
+        needed += session->ticket_len;      /* ticket */
     }
 #endif /* MBEDTLS_SSL_CLI_C */
 
     *olen = needed;
     if( needed > buf_len )
-    {
         return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-    }
 
     p[0] = session->endpoint;
     MBEDTLS_PUT_UINT16_BE( session->ciphersuite, p, 1 );
@@ -3073,9 +3069,7 @@
     case MBEDTLS_SSL_VERSION_TLS1_3:
         ret = ssl_tls13_session_save( session, p, remaining_len, &out_len );
         if( ret != 0 && ret != MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL )
-        {
             return( ret );
-        }
         used += out_len;
         break;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */