There is no longer a dependency on JCIFS and therefore it has been removed from the installer and all the traces of it in documentation.The internal Spotfire library files have been updated in such a way that it got rid of JCIFS dependency.
For more information refer
Release Notes document for TSS 10.2 .
Note : All previous versions to 10.2 are still required to use JCIFS components when configuring NTLM authentication on Spotfire server , as per steps mentioned
here.