Revert "Create the specified remote directory during backup"

The issue was that b826c9ff changed it to create the S3 bucket (local directory if using fog-local) if necessary. The problem is twofold:

1. The AWS ID may not have permission to create the bucket
2. The location parameter must be specified in the create call with EU or eu-west-1 in our case (see LocationConstraint in http://docs.aws.amazon.com/general/latest/gr/rande.html)

Closes gitlab-com/operations#337 (closed)