You need to disable the same like this,
<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.2">
<deployment>
<exclude-subsystems>
<subsystem name="jaxrs" />
<subsystem name="webservices" />
</exclude-subsystems>
</deployment>
</jboss-deployment-structure>