remove .has-error class, not used

services/web/public/stylesheets/components/forms.less

@@ -309,9 +309,6 @@ input[type="checkbox"],
 .has-warning {
   .form-control-validation(@state-warning-text; @state-warning-text; @state-warning-bg);
 }
-.has-error {
-  .form-control-validation(@state-danger-text; @state-danger-text; @state-danger-bg);
-}
 .has-external-error {
   .form-control-validation(@state-danger-text; @state-danger-text; @state-danger-bg);
   color:@red;