Neste caso deverás cortar o código abaixo:
<?php if ('open' == $post->comment_status) : ?>
<div id="commentsAdd">
<div id="respond" class="box m-t-6">
<?php global $aria_req; $comments_args = array(
'title_reply'=>'<h4><span>'.__('Leave a Reply', 'schema' ).'</span></h4>',
'comment_notes_before' => '',
'comment_notes_after' => '',
'label_submit' => __( 'Post Comment', 'schema' ),
'comment_field' => '<p class="comment-form-comment"><textarea id="comment" name="comment" cols="45" rows="8" aria-required="true" placeholder="'.__('Comment Text*', 'schema' ).'"></textarea></p>',
'fields' => apply_filters( 'comment_form_default_fields',
array(
'author' => '<p class="comment-form-author">'
.( $req ? '' : '' ).'<input id="author" name="author" type="text" placeholder="'.__('Name*', 'schema' ).'" value="'.esc_attr( $commenter['comment_author'] ) . '" size="30"' . $aria_req . ' /></p>',
'email' => '<p class="comment-form-email">'
.($req ? '' : '' ) . '<input id="email" name="email" type="text" placeholder="'.__('Email*', 'schema' ).'" value="' . esc_attr( $commenter['comment_author_email'] ).'" size="30"'.$aria_req.' /></p>',
'url' => '<p class="comment-form-url"><input id="url" name="url" type="text" placeholder="'.__('Website', 'schema' ).'" value="' . esc_url( $commenter['comment_author_url'] ) . '" size="30" /></p>'
)
)
);
comment_form($comments_args); ?>
</div>
</div>
<?php endif; // if you delete this the sky will fall on your head ?>
E colar na linha abaixo desta:
<!-- You can start editing here. -->
Testa e depois diz se ficou como pretendido
