Be careful to do not remove data directory and Neo4j database directory if you want to save your data! See RHEL: Important directories.
Steps to uninstall Graphlytic:
Stop Graphlytic. See RHEL: 5. Stop Graphlytic
Check where is your data directory. (see "main.dataDir" in file graphlytic.conf).
Go to data directory location and backup this directory to safe location. (see RHEL: Important directories)
Remove service if Graphlytic was installed as a service:
systemctl disable graphlytic.service
Go into Graphlytic home directory
Remove content of Graphlytic home directory