Uninstalling/Removing SharePoint 2013 Workflow Manager Farm

These are the steps you would need to take to un-install your Workflow manager 1.0:
For each node in your workflow farm:

1. Leave the workflow farm (Remove the node from the farm using “Leave Workflow Manager Farm” option)

     2.      Uninstall the following programs in the program list in the Control Panel window, under Programs select Uninstall a Program.

• Service Bus 1.0
• Windows Fabric
• Workflow Manager 1.0
• Workflow Manager 1.0 Client

Once you are sure all nodes have left the workflow farm, you can delete below databases from you SharePoint SQL Server: (Backing them up beforehand might be a wise choice!)

• SBMessageContainer01
• SbGatewayDatabase
• SBManagementDB
• WFInstanceManagementDB
• WFManagementDB
• WFResourceManagementDB