Remove the “form allowed tags” at comment form

At the comment form, there are some lines like this:

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

This indidates that the users can use those tags to style their comment, maybe you do not want those lines appear. So you can add the code below to Appearance > Customize > Addtional CSS to remove it:

.form-allowed-tags {
 display:none;
 }