Corrected behavior when a widget schedule item is removed and adds twice instead leave it empty

src/Plugin/Field/FieldWidget/AvailabilityTimingWidget.php

@@ -119,10 +119,6 @@ class AvailabilityTimingWidget extends WidgetBase {
         ],
       ];
       $deltas = $form_state->get($baseName . '_deltas') ? $form_state->get($baseName . '_deltas') : 0;
-      if (empty($deltas) && !empty($timing[$day_key])) {
-        $deltas = count($timing[$day_key]);
-        $form_state->set($baseName . '_deltas', $deltas);
-      }
       for ($i = 0; $i < $deltas; $i++) {
         $element['timing'][$day_key]['schedule'][$i] = [
           '#type' => 'container',