Remove paragraph in comments as it is no longer required

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index f045f8d..245b1f4 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2309,11 +2309,6 @@
 
 /*
  * Return supported signature algorithms.
- *
- * ssl->handshake->sig_algs is either a translation of sig_hashes to IANA TLS
- * used, or a pointer to ssl->conf->sig_algs when mbedtls_ssl_conf_sig_algs() has
- * been more recently invoked.
- *
  */
 static inline const void *mbedtls_ssl_get_sig_algs(
     const mbedtls_ssl_context *ssl)