1. Uninstall the Git Integration for Jira app from the Jira UPM (Universal Plugin Manager).
Go to Jira Administration Manage apps. Under User-installed apps, select Git Integration for Jira then click Uninstall.
2. Delete all repositories.
rm -rf $Jira_HOME/data/git-plugin
3. Delete the index.
rm -rf $Jira_HOME/caches/indexes/plugins/jira-git-*
4. Remove the Git Integration for Jira app tables (all tables starting with AO_8BA09E_) from the Jira database.
Credentials are usually located in $Jira_HOME/dbconfig.xml. There is no standard SQL command to remove all tables by prefix. The list of tables depends on the installed Git Integration Plugin for Jira add-on version. All the tables are displayed in Jira Administration > System > Plugin Data Storage.
5. Remove the table by performing the following SQL command: DROP TABLE table_name.