Bugfix. Remove view for contact moved to different group

Otherwise the contact stays visible under "Pending Contacts" although
the subscription request has been accepted.

dist/converse.js

@@ -50761,6 +50761,7 @@ function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterat
           this.model.contacts.remove(contact, {
             'silent': true
           });
+          this.get(contact.get('jid')).remove();
           this.onRemove(contact);
         },
         onRemove: function onRemove(contact) {

src/converse-rosterview.js

@@ -707,6 +707,7 @@
                     // also cause the contact's view to be removed from the
                     // "Pending Contacts" group.
                     this.model.contacts.remove(contact, {'silent': true});
+                    this.get(contact.get('jid')).remove();
                     this.onRemove(contact);
                 },