nuke ie8 warning in tables

docs/_includes/css/tables.html

@@ -44,10 +44,6 @@
 
   <h2 id="tables-striped">Striped rows</h2>
   <p>Use <code>.table-striped</code> to add zebra-striping to any table row within the <code>&lt;tbody&gt;</code>.</p>
-  <div class="bs-callout bs-callout-danger">
-    <h4>Cross-browser compatibility</h4>
-    <p>Striped tables are styled via the <code>:nth-child</code> CSS selector, which is not available in Internet Explorer 8.</p>
-  </div>
   <div class="bs-example">
     <table class="table table-striped">
       <thead>