All adapter definitions are found under the Administration > Adapters > Data Integrator tree. An adapter definition must be undeployed in order to delete it.
To delete an adapter definition:
In the Explorer pane, expand the Administration root element > Adapters > Data Integrator.
Right-click a definition, then select Delete Definition.
Click Yes to confirm and delete the definition.
The definition is removed from the Administration > Adapters > Data Integrator hierarchy.
Close all editors and undeploy the definitions before trying to delete them.
Definitions that are deployed or are currently edited cannot be deleted.