(legacy) small style fix in interfaces_ppps_edit.php

src/www/interfaces_ppps_edit.php

@@ -442,7 +442,6 @@ include("head.inc");
         <div class="row">
           <?php if (isset($input_errors) && count($input_errors) > 0) print_input_errors($input_errors); ?>
           <section class="col-xs-12">
-          <div class="content-box">
             <form action="interfaces_ppps_edit.php" method="post" name="iform" id="iform">
               <div class="tab-content content-box col-xs-12 __mb">
                 <div class="table-responsive">
@@ -927,7 +926,6 @@ include("head.inc");
                 </div>
               </div>
             </form>
-          </div>
           </section>
         </div>
       </div>