You can uninstall the Application Client using the Installation Manager command line.
./imcl uninstall com.ibm.websphere.APPCLIENT.v85,optional_feature_ID
-installationDirectory installation_directory
IBM thin clients and resource adapters provide a set of clients and resource adapters for a variety of technologies, such as JAX-WS, JAX-RPC, JAX-RS, XML, EJB, JPA, JMS, and more. An embeddable container runs in a standalone Java Platform, Standard Edition environment. For example, you can use the embeddable EJB container to run enterprise beans outside the application server.
This option installs the runtime for standalone thin clients.
This option installs the embeddable EJB container.
The embeddable EJB container is a Java Archive (JAR) file that you can use to run enterprise beans in a standalone Java Platform, Standard Edition environment. You can run enterprise beans using this embeddable container outside the application server. The embeddable EJB container is a part of the EJB 3.1 specification and is primarily used for unit testing enterprise beans business logic.
For more information on using the imcl command to uninstall the product, see the IBM Installation Manager Version 1.6 Information Center or the IBM Installation Manager Version 1.5 Information Center.