How to delete [Retired] RansomFree

##This package has been retired.

Per https://www.cybereason.com/solutions/ransomware-protection :

"NOTICE

We appreciate your interest in and support of RansomFree, and we are committed to providing the highest quality products and services to our customers.

We have decided, however, to discontinue availability and support for Cybereason RansomFree. We are thankful for the over 500,000 people who downloaded our free ransomware protection tool."