Remove lipid droplet breakdown reaction MAR00032

[Devlin-Moyer]

Main improvements in this PR:

Removes MAR00032 and associated non-metabolic genes ENSG00000072062, ENSG00000142875, ENSG00000165059, ENSG00000172531, ENSG00000186298, and ENSG00000213639, as proposed in #631

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

[Devlin-Moyer]

Apparently MAR00032 was the only reaction that ENSG00000072062, ENSG00000142875, ENSG00000165059, ENSG00000172531, ENSG00000186298, and ENSG00000213639 were associated with (that's why the YAML validation failed); @JonathanRob, since you mentioned that some of the gene associations with MAR00030 were questionable, have you maybe already determined that any/all of these genes should be removed from Human-GEM entirely?

[JonathanRob]

Yes, it's fine to remove these genes from the model altogether.

[haowang-bioinfo]

Yes, it's fine to remove these genes from the model altogether.

these 6 genes encode either kinases or phosphatases that undertake regulatory activities, instead of lipid droplet formation.

[haowang-bioinfo]

the questionable GPR of MAR00032 supports its removal