Remove public api mbedtls_ssl_reset_hostname()

Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 414b860..2a63610 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -12909,7 +12909,7 @@
             -c "got new session ticket." \
             -c "Saving session for reuse... ok" \
             -c "Reconnecting with saved session" \
-            -c "hostname mismatch the session ticker, should not resume"    \
+            -c "hostname mismatch the session ticket, should not resume"    \
             -s "=> write NewSessionTicket msg" \
             -s "server state: MBEDTLS_SSL_NEW_SESSION_TICKET" \
             -s "server state: MBEDTLS_SSL_NEW_SESSION_TICKET_FLUSH"