Deletes comment from the Commentable.
If the given comment isn't deletable (either because the service doesn't support deleting comments at all, or because this
particular comment is not deletable due to having insufficient permissions), gdata_service_error_forbidden
will be set in throws and false will be returned.
| this | |
| service |
a Service with which the comment will be deleted |
| comment_ |
a comment to be deleted |
| cancellable |
optional Cancellable object, or null |
|
true if the comment was successfully deleted, false otherwise |