How to remove a connection automatically?
LinkedIn has a limit of 30,000 connections and once you reach this limit, you won't be able to add any more new connections.
To quickly clean up your current connection list, you can use "Disconnect" feature on Dux-Soup.
Click on Dux-Soup Options and scroll down to enable this feature:
Then, go back to your LinkedIn, set up search filters for your 1st-degree contacts and click "Visit Profiles"
Dux-Soup will visit each profile and remove them from your network.
Please note that it will only work on Standard LinkedIn.