Remove SLE Micro reference from elemental-operator images

[davidcassany]

No description provided.

[davidcassany]

@fgiudici this is how I would tag the images from the chart. I would not include references to the SLE Micro version as those images are including really few things and they are really not related to any OS version. The same should apply for the channel images, ideally we should be capable to list images from multiple SLE Micro versions within the same image, hence adding a SLE Micro reference within the channel URI looks like a confusing idea to me. Only the OS images (and probably its helper images to build isos) should be clearly related to the underlaying SLE Micro version IMHO.

@kkaempf how do you feel about it?

[davidcassany]

I'd like this to merge this after rancher/elemental-docs#187 as this also implies another URL change, but only for the next version.

[davidcassany]

Blocked waiting for rancher/elemental-docs#187

EDIT: Just realized the URL of those images is not appearing anywhere in docs (which is good, they are implementation details). My bad on assuming this PR was related somehow with rancher/elemental-docs#187.

Unblocking

[fgiudici]

Love the changes ❤️