Remove unused ripple-txt-validator files

tool/template-ripple-txt-validator.html

@@ -1,31 +0,0 @@
-{% extends "template-base.html" %}
-
-{% block main %}
-<section class="container-fluid pt-3 p-md-3">
-  <h1>ripple.txt Validator</h1>
-
-  <p>If you run a business that connects to the XRP Ledger, serving a <code>ripple.txt</code> file from your domain can help clarify which XRP Ledger addresses you own and use, and which validating server(s) you run.</p>
-
-  <p>This tool allows you to verify that your ripple.txt is syntactically
-    correct and deployed properly.</p><br/>
-  <form id="domain-entry">
-    <fieldset>
-      <input id="domain" type="text" required
-             placeholder="example.com (Domain name to check)"
-             pattern="^([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}$"><br>
-      <button class="btn btn-primary">Verify ripple.txt</button>
-    </fieldset>
-  </form>
-  <div id="result">
-    <h5 class='result-title'>Result</h5>
-      <ul id="log">
-    </ul>
-  </div>
-</section>
-{% endblock %}
-
-{% block endbody %}
-  <link rel='stylesheet' type='text/css' href='assets/css/ripple-txt-validator.css' />
-  <script type='text/javascript' src='assets/vendor/async.min.js'></script>
-  <script type='text/javascript' src='assets/js/ripple-txt-validator.js'></script>
-{% endblock %}