ion-delete-button
Child of ionItem

Usage

<ion-list show-delete="shouldShowDelete">
  <ion-item>
    <ion-delete-button class="ion-minus-circled"></ion-delete-button>
    Hello, list item!
  </ion-item>
</ion-list>
<ion-toggle ng-model="shouldShowDelete">
  Show Delete?
</ion-toggle>