Possible solution for Issue 303

Since the change to search API 1.1 this seems to be wrong. With decrement by 1
you will get the following error:
`tweepy.error.TweepError: [{'message': 'Missing or invalid url parameter', 'code': 195}]`
Removing it seems to resolve this without causing duplicates for us. However, more testing is needed. This seems to resolve issue #303