chore(cleanup): Remove all LLM functionality

[mcamou]

Description

As per a Slack conversation, all LLM functionality needs to be killed. We'll do it in a single, separate PR so that it can be easily revived if necessary.

Notes for Reviewers

Don't you just love deleting code? I love the feel of the Delete key in the morning.

Signed commits

• Yes, I signed my commits.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.

Project coverage is 10.43%. Comparing base (c58fe2a) to head (d771f23).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/workers/types/work_types.go	0.00%	4 Missing ⚠️
node/oracle_node.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##            main     #626      +/-   ##
=========================================
+ Coverage   8.82%   10.43%   +1.61%     
=========================================
  Files         99       93       -6     
  Lines       7809     6708    -1101     
=========================================
+ Hits         689      700      +11     
+ Misses      7046     5934    -1112     
  Partials      74       74              

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[mcamou]

Force-push after rebasing on top of main after merging #625

[mudler]

ooh yes!