Fix: GPR curation for retinol metabolism and riboflavin metabolism

[JHL-452b]

Main improvements in this PR:

As proposed in #859

• Remove ENSG00000147576 from MAR06631;
• Remove ENSG00000204195 from MAR06635;
• Remove ENSG00000170786 from MAR06638;
• Remove ENSG00000163684 from MAR06640;
• Remove ENSG00000155016, ENSG00000137869 from MAR06657;
• Remove ENSG00000134184 from MAR06661;
• Remove ENSG00000121039, ENSG00000087076, ENSG00000099377, ENSG00000100867 from MAR06670;
• Remove ENSG00000147576 from MAR06633;
• Remove ENSG00000170786 from MAR08709;
• Remove ENSG00000186377 from MAR06658;
• Remove ENSG00000155893, ENSG00000162836, ENSG00000102575 from MAR06507;
• Remove ENSG00000112874 from MAR20117.

I hereby confirm that I have:

• Tested my code on my own computer for running the model
• Selected develop as a target branch
• Any removed reactions and metabolites have been moved to the corresponding deprecated identifier lists

[github-actions]

This PR has been automatically tested with GH Actions. Here is the output of the MACAW test:

Starting dead-end test...
 - Found 1514 dead-end metabolites.
 - Found 1319 reactions incapable of sustaining steady-state fluxes in either direction due to these dead-ends.
 - Found 1977 reversible reactions that can only carry steady-state fluxes in a single direction due to dead-ends.
Starting duplicate test...
 - Skipping redox duplicates because no redox_pairs and/or proton_ids were provided.
 - Found 447 reactions that were some type of duplicate:
   - 0 were completely identical to at least one other reaction.
   - 13 involve the same metabolites but go in the opposite direction or have the opposite reversibility as at least one other reaction.
   - 447 involve the same metabolites but with different coefficients as at least one other reaction.

This and a more detailed output from MACAW are also committed to data/macawResults/.

Note: In the case of multiple test runs, this post will be edited.