Windows: Fix trace msg typo in AFSDeleteDirEntry

The name of the function in the trace messages is wrong.

Change-Id: I7a1b86765ca8fde828615069c66e51f5e5dce4ca
Reviewed-on: http://gerrit.openafs.org/9899
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>