Behind the Advanced twisty is a button that gives Jira administrators the ability to clear out all Development Information associated with the Git Integration for Jira app.
After all the settings have been configured according to your requirements, click Update to apply the changes.
More Jira Development Information settings
Send development information to Jira Cloud setting
Enable Jira Cloud Smart Commits, Automation for Jira and Workflow Triggers setting
Enable Git Integration app smart commits setting
Advanced: Clear Development Information setting (this page)