🇮🇳India @Munavijayalakshmi

+++ b/core/lib/Drupal/Core/Field/WidgetBase.php
@@ -353,6 +369,11 @@ public function extractFormValues(FieldItemListInterface $items, array $form, Fo
+        // Filter out removed items

Comments should (noramlly) begin with a capital letter and end with a full stop / period .

+++ b/core/lib/Drupal/Core/Field/WidgetBase.php
@@ -202,6 +202,22 @@ protected function formMultipleElements(FieldItemListInterface $items, array &$f
+          $element['_remove'] = array(
+            '#title' => $this->t('Remove'),
+            '#title_display' => 'invisible',
+            '#type' => 'checkbox',
+            '#default_value' => $items[$delta]->_remove ?: FALSE,
+            '#weight' => 101,
+          );

use short array syntax (new coding standard).