'Delete the current spot instance data feed subscription
associated with this account
:type dry_run: bool
:param dry_run: Set to True if the operation should not actually run.
:rtype: bool
:return: True if successful'

def delete_spot_datafeed_subscription(self, dry_run=False):

    params = {}
    if dry_run:
        params['DryRun'] = 'true'
    return self.get_status('DeleteSpotDatafeedSubscription', params, verb='POST')
