Is 'Read more' deletable?

Make sure you are using a child theme

Here’s the code needed to be added:

input[type="reset"], input[type="button"], input[type="submit"], input[type="reset"]:hover, input[type="button"]:hover, input[type="submit"]:hover, a.readmore, a.readmore:hover, .widget_custom-tagcloud a:hover, #wp_page_numbers ul li a:hover, #wp_page_numbers ul li.active_page a, .wp-pagenavi .current, .wp-pagenavi a:hover, ul.default-wp-page li a:hover, .pagination span {
  background: none repeat scroll 0 0 #06CCD3;
  border-color: rgba(0, 0, 0, 0.2);
<strong>  display: none;</strong>
}

just add in your style.css in your child theme.