Revert "Add temporary warning banner for TLS testing phase"

This reverts commit 8809b52.

Author: mxsasha

frontend/css/style.css

@@ -1,26 +1,6 @@
 /* internet.nl
    style.css
 */
-.experimental-banner {
-    position: fixed;
-    bottom: 0;
-    left: 0;
-    right: 0;
-    background-color: #fff3cd;
-    border-bottom: 1px solid #ffc107;
-    color: #111111;
-    padding: 12px 20px;
-    text-align: center;
-    text-wrap: balance;
-    font-size: 14px;
-    z-index: 9999;
-}
-
-.experimental-banner p {
-  margin-bottom: 10px;
-}
-
-
 
 @font-face {
     font-family: 'robotobold';

interface/templates/base.html

@@ -35,20 +35,6 @@
   <div class="skiplink"><a href="#content">{% include "string.html" with name='page gotocontents' %}</a></div>
   <div class="skiplink" id="skiplink-sitenav"><a href="#sitenav">{% include "string.html" with name='page gotomainmenu' %}</a></div>
   <div class="skiplink"><a href="#footer">{% include "string.html" with name='page gotofooter' %}</a></div>
-  <div class="experimental-banner">
-    <p><strong>⚠️ Caution:</strong> This is an early demo of our test updates for NCSC's 2025 TLS guidelines, to allow
-      you to test against the new guidelines.</p>
-      <p>
-      Some explanation text is still missing, out of date, or in rough draft state. Test evaluations may still change.
-          <br>
-      This URL is an active development environment and has limited availability - it may be down for hours or days.
-      </p>
-      <p>
-      Tests from this instance originate from different IPs than those used in production.
-      If you use allowlisting on our production IPs, results may vary, particularly for email TLS.
-      To include this instance, allowlist 62.204.66.0/26 and 2a00:d00:ff:162::/64.
-      </p>
-  </div>
   <header>
     <div class="wrap">
       {% if "INTERNETNL_BRANDING"|get_settings_value %}