Remove /var/log/wtmp on provision
Remove /var/log/wtmp on provision

Resolves #216

royragsdale/picoCTF,picoCTF/picoCTF,royragsdale/picoCTF,royragsdale/picoCTF,royragsdale/picoCTF,royragsdale/picoCTF,royragsdale/picoCTF,royragsdale/picoCTF,picoCTF/picoCTF,picoCTF/picoCTF,picoCTF/picoCTF,picoCTF/picoCTF,picoCTF/picoCTF