Yes, you can but for that you would need to edit the "modules/system/layers/dv/org/jboss/teiid/main/deployments/teiid-olingo-odata4.war" file, in the

1) jboss-web.xml remove the line "<security-domain>java:/jaas/teiid-security</security-domain>"

2) web.xml file remove all of below

    <security-role>

        <description>security role</description>

        <role-name>odata</role-name>

    </security-role>

    <security-constraint>

        <display-name>require valid user</display-name>

        <web-resource-collection>

            <web-resource-name>Teiid Rest Application</web-resource-name>

            <url-pattern>/*</url-pattern>

            <http-method>OPTIONS</http-method>           

        </web-resource-collection>

    </security-constraint>

    <security-constraint>

        <display-name>require valid user</display-name>

        <web-resource-collection>

            <web-resource-name>Teiid Rest Application</web-resource-name>

            <url-pattern>/*</url-pattern>

        </web-resource-collection>

        <auth-constraint>

            <role-name>odata</role-name>

        </auth-constraint>

    </security-constraint>

    <security-constraint>

        <web-resource-collection>

            <web-resource-name>Teiid Rest Application</web-resource-name>

            <url-pattern>/static/*</url-pattern>

        </web-resource-collection>

    </security-constraint>

    <login-config>

        <auth-method>BASIC</auth-method>

        <realm-name>yourdomain.com</realm-name>

    </login-config>

after that save the new war file, restart the server. If that does not work undeploy "teiid-olingo-odata4.war" file then restart the server.