Delete /var/db/pkg.bak?

[Walter Hurry]

Admittedly disk space is cheap, but old habits die hard and I just don't 
like keeping stuff I no longer need.

I converted to pkgng just under a couple of months ago, and have had no 
serious problems (even the minor issues have been promptly resolved with 
the kind and able assistance of Matthew Seaman).

I have no intention of trying to 'go back', so my question is this: Is it 
safe now to clear out the pkg.bak file which was created by pkg2ng at the 
time of conversion? I'm almost sure it is, but just want to make certain.