ConfirmRemovalForm: Drop autofocus entirely

Besides that this is a destructive operation which shouldn't
get automatic focus… our native way to adhere to WCAG standards
is by focusing the newly rendered container which suffices.

application/forms/ConfirmRemovalForm.php

@@ -22,19 +22,4 @@ class ConfirmRemovalForm extends Form
         $this->setName('form_confirm_removal');
         $this->getSubmitLabel() ?: $this->setSubmitLabel($this->translate('Confirm Removal'));
     }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function addSubmitButton()
-    {
-        parent::addSubmitButton();
-
-        if (($submit = $this->getElement('btn_submit')) !== null) {
-            $class = $submit->getAttrib('class');
-            $submit->setAttrib('class', empty($class) ? 'autofocus' : $class . ' autofocus');
-        }
-
-        return $this;
-    }
 }