[FIX] Remove duplicated case statement

Author: coderimus

app/code/Magento/Backend/view/adminhtml/templates/widget/form/element.phtml

@@ -19,9 +19,6 @@
       <?php break;
     case 'column': ?>
       <?php break;
-    case 'hidden': ?>
-    <input type="<?= /* @escapeNotVerified */ $element->getType() ?>" name="<?= /* @escapeNotVerified */ $element->getName() ?>" id="<?= $element->getHtmlId() ?>" value="<?= /* @escapeNotVerified */ $element->getValue() ?>">
-      <?php break;
     case 'select': ?>
     <span class="form_row">
         <?php if ($element->getLabel()): ?><label for="<?= $element->getHtmlId() ?>"><?= /* @escapeNotVerified */ $element->getLabel() ?>:</label><?php endif; ?>

app/code/Magento/Reports/Controller/Adminhtml/Report/Sales.php

@@ -56,9 +56,6 @@ protected function _isAllowed()
             case 'coupons':
                 return $this->_authorization->isAllowed('Magento_Reports::coupons');
                 break;
-            case 'shipping':
-                return $this->_authorization->isAllowed('Magento_Reports::shipping');
-                break;
             case 'bestsellers':
                 return $this->_authorization->isAllowed('Magento_Reports::bestsellers');
                 break;