azure pipeline fix removal of recently run exe
azure pipeline fix removal of recently run exe

The following is an azure failure that occured Sep 13:

del : Cannot remove item D:\a\1\s\sfx.exe: The process cannot access the file 'D:\a\1\s\sfx.exe' because it is being used by another process.

Windows will keep a hold of recently run exeutables even after their process has exited.  To avoid this I've just removed the deletion of the exe file.  It's about 70 MB so it's probably OK.

andrewrk/zig,andrewrk/zig