Follow the below steps to remove your Hi5 Slack integration.
To find out about the new Hi5 Slack app, which allows you to not only receive a Hi5 feed but also give Hi5's on Slack, read here.
Removing your Hi5 Slack app integration.
In your Slack app, click on your Workspace name to open the menu. Choose Customize Slack. A new browser window will open.
In the new browser window, click on the Home icon next to your Workspace name to go to your main Slack dashboard.
Scroll to the bottom to see a list of your Recently Added Applications. If Hi5 doesn't appear on this list, click on the link View all installed apps.
Then, choose Hi5 on your Apps list.
Scroll to the bottom of the Hi5 Slack App Homepage and click on the red button that says Remove App.
After you've done this, you can integrate Slack again following the steps in this article.
With the new and improved Hi5 Slack app, you will also be able to give Hi5's from within a Slack #channel or conversation!