Delete the Web server definition in a standalone application server

The uninstaller program for the Web server plug-ins for WebSphere Application Server does not delete Web server definitions. However, you can delete a Web server definition from admin console OR by using the following wsadmin commands:

$AdminTask deleteServer { -serverName webserver1 -nodeName WebserverHostName-node_node }
$AdminTask removeUnmanagedNode { -nodeName WebserverHostName-node_node }
$AdminConfig save

Ex:
$AdminTask deleteServer { -serverName webserver1 -nodeName webserver1_node}
$AdminTask removeUnmanagedNode { -nodeName webserver1_node}
$AdminConfig save