remove files from previous websites that have been hanging out in the repo

[hkershaw-brown]

Description:

Please provide a summary of the change and include any relevant motivation and context.

Fixes issue

fixes #678

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue) Removes unused files.
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update

Documentation changes needed?

• [ ] My change requires a change to the documentation.
  • [ ] I have updated the documentation accordingly.

Tests

Please describe any tests you ran to verify your changes.

Built documentation to check non of these files are used.

Checklist for merging

• [ ] Updated changelog entry
• [ ] Documentation updated
• [ ] Update conf.py

Checklist for release

• [ ] Merge into main
• [ ] Create release from the main branch with appropriate tag
• [ ] Delete feature-branch

Testing Datasets

• [ ] Dataset needed for testing available upon request
• [ ] Dataset download instructions included
• [ ] No dataset needed