Updated to remove repos from playbook + fix typo

[oybed]

What does this PR do?

Minor clean-up + fixing typo

How should this be manually tested?

Run a provisioning, e.g.:

./provision.sh -i=<path_to_inventory> -p=<path_to_OSE_installer>

Is there a relevant Issue open for this?

N/A

Who would you like to review this?

/cc @etsauer

[etsauer]

lgtm. merging.