Revert "Port tardis_opacities script from tardisanalysis"

[andrewfullard]

Reverts #1580

This is intended to allow the addition of proper credit to the PR #1580

[codecov]

Codecov Report

Merging #1677 (e561684) into master (c47a3df) will not change coverage.
The diff coverage is n/a.

❗ Current head e561684 differs from pull request most recent head dbcf9b2. Consider uploading reports for the commit dbcf9b2 to get more accurate results

@@           Coverage Diff           @@
##           master    #1677   +/-   ##
=======================================
  Coverage   61.89%   61.89%           
=======================================
  Files          62       62           
  Lines        5732     5732           
=======================================
  Hits         3548     3548           
  Misses       2184     2184           

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[tardis-bot]

Before a pull request is accepted, it must meet the following criteria:

• Is the necessary information provided?
• Is this a duplicate PR?
  • If a new PR is clearly a duplicate, ask how this PR is different from the original PR?
  • If this PR is about to be merged, close the original PR with a link to this new PR that solved the issue.
• Does it pass existing tests and are new tests provided if required?
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