feat(context-pad): add delete button

See #118

lib/features/context-pad/ContextPadProvider.js

@@ -95,21 +95,16 @@ ContextPadProvider.prototype.getContextPadEntries = function(element) {
         action: function() {
           append(element, 'bpmn:TextAnnotation');
         }
-      }
+      },
-    });
-
-  }
-
-  /*
-  _.extend(actions,  {
       'action.delete': {
         imageUrl: 'data:image/png;base64,' + images.TRASH,
         action: function(e) {
-        console.log('action.delete', e);
+          modeling.removeShape(element);
         }
       }
     });
-  */
+
+  }
 
   return actions;
 };