Remove duplicated skip logic

[say-yawn]

About this PR

Removing duplicate code that skips if the email tracker versioned list does NOT exist which was already handled later in the code:

shavar/shavar/lists.py

Lines 86 to 97 in 1faa189

	try:
	list_._source.load()
	except NoDataError:
	err_msg = (
	'Skipping {0} version support for {1} '
	'since the file does not exist in S3'
	)
	logger.error(err_msg.format(ver, list_name))
	original_source = settings['source'].replace(
	versioned_path.format(branch_name), original_path)
	settings['source'] = original_source
	continue