pull up r19861 from trunk

pull up r19861 from trunk

 r19861@cathode-dark-space:  jaltman | 2007-08-24 10:40:23 -0400
 ticket: new
 subject: NIM: remove unused code from ui/credwnd.c
 component: windows

 Remove unused code from Network Identity Manager credwnd.c.  The code
 was meant to construct a user interface context based on where the
 user right clicks on the credentials display.  However, doing so
 without indicating the changed selection to the user results in the
 application performing an operation on an identity or credential that
 the user didn't intend to select.

 The code was commented out and was never used in any recent release of
 Kerberos for Windows.

ticket: 5682
version_fixed: 1.6.3

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-6@19996 dc483132-0cff-0310-8789-dd5450dbe970