Called by the link internals to remove an attribute from this node.
Source
Response removeAttribute(
String name, Responder responder, Response response) {
if (response != null) {
return response..close();
} else {
if (!name.startsWith("@")) {
name = "@${name}";
}
attributes.remove(name);
if (provider is SerializableNodeProvider) {
(provider as SerializableNodeProvider).persist();
}
return null;
}
}