Revert "Add windows userdata"

Reverts juju/juju#189

Suspected as cause of https://bugs.launchpad.net/juju-core/+bug/1359333

Attempting to connect to 54.164.13.65:22
/bin/bash: line 306: C:/Juju/log/cloud-init-output.log: No such file or directory
2014-08-20 18:36:26 ERROR juju.provider.common bootstrap.go:123 bootstrap failed: Process exited with: 1. Reason was: ()
Stopping instance...