Remove obsolete workflow

[jjngx]

Proposed changes

This PR removes workflow for creating SBOM from source code. We run the workflow from a different repository.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING document
• I have run make install-tools and have attached any dependency changes to this pull request
• If applicable, I have added tests that prove my fix is effective or that my feature works
• If applicable, I have checked that any relevant tests pass after adding my changes
• If applicable, I have updated any relevant documentation (README.md)
• If applicable, I have tested my cross-platform changes on Ubuntu 22, Redhat 8, SUSE 15 and FreeBSD 13

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.02%. Comparing base (4a95e53) to head (3e1b93c).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1579   +/-   ##
=======================================
  Coverage   85.02%   85.02%           
=======================================
  Files         103      103           
  Lines       13589    13589           
=======================================
  Hits        11554    11554           
  Misses       1518     1518           
  Partials      517      517           

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