Always set the crash information.

There's no reason to do it only on Windows - and, in fact, the only
platform where we currently do anything with the information is OS X.
Every other program in the Wireshark suite that does it at all does it
on all platforms.

Change-Id: I8ab29fd86656dd44322991d0d7263c6bb4fcd425
Reviewed-on: https://code.wireshark.org/review/2730
Reviewed-by: Guy Harris <guy@alum.mit.edu>