2190827 - How to clear any cached kerberos tickets when testing SSO

when testing SSO it is important that cached tickets are removed for multiple reasons

1. packet scanning will not show ticket requests if a valid cached ticket exists
2. If a configuration change was made such as constrained delegatoin the changes willnot be reflected until a new ticket is requested
3. In general SSO may fail or work because it is using a old ticket and not getting a current one whihc of course will  be misleading 

Relevent to All versions of BI and supported version sof windows

KBA , biauth , tskba , tskb , 3tkba , BI-BIP-AUT , Authentication, ActiveDirectory, LDAP, SSO, Vintela , How To