removed k3s code

[zackbradys]

Please check below, if the PR fulfills these requirements:

• Commit(s) and code follow the repositories guidelines.
• Test(s) have been added or updated to support these change(s).
• Doc(s) have been added or updated to support these change(s).

Associated Links:

• N/A

Types of Changes:

• Bugfix/Cleanup

Proposed Changes:

• Removed all k3s related code

Verification/Testing of Changes:

• Use hauler as usual...

Additional Context:

• Since hauler came back to life last year, the code for k3s has not been functioning and does not meet the current outlook, design, and architecture of hauler
• Additionally, it goes against the intended functionality and implementation of our --products features

[dweomer]

Notified:

• [DEPRECATING] removal of k3sCollection type from codebase #357