<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def delete_stack(awsclient, conf, feedback=True):
 """Delete the stack from AWS cloud. :param awsclient: :param conf: :param feedback: print out stack events (defaults to True) """

    client_cf = awsclient.get_client('cloudformation')
    stack_name = _get_stack_name(conf)
    last_event = _get_stack_events_last_timestamp(awsclient, stack_name)

    request = {}
    dict_selective_merge(request, conf['stack'], ['StackName', 'RoleARN'])

    response = client_cf.delete_stack(**request)

    if feedback:
        return _poll_stack_events(awsclient, stack_name, last_event)