Don't recalculate md5 in » links.

html.c

@@ -321,13 +321,11 @@ xs_html *html_actor_icon(snac *user, xs_dict *actor, const char *date,
         name_link);
 
     if (!xs_is_null(url)) {
-        xs *md5 = xs_md5_hex(url, strlen(url));
-
         xs_html_add(actor_icon,
             xs_html_text(" "),
             xs_html_tag("a",
                 xs_html_attr("href", (char *)url),
-                xs_html_attr("title", md5),
+                xs_html_attr("title", xs_is_string(md5) ? md5 : ""),
                 xs_html_text("»")));
     }