Remove MAR00965 and Fix GPR of MAR00970

[Devlin-Moyer]

Main improvements in this PR:

As proposed in #748, removes MAR00965 and fixes the GPR of MAR00970

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

[feiranl]

(ENSG00000115361 or ENSG00000177646) and (ENSG00000167969 or ENSG00000198721) and ENSG00000104823 and ENSG00000104325 and ENSG00000084754 and ENSG00000138029 is not a standard GPR rule, it should be (ENSG00000115361 and ENSG00000167969 and ENSG00000104823 and ENSG00000104325 and ENSG00000084754 and ENSG00000138029) or (ENSG00000115361 and ENSG00000198721 and ENSG00000104823 and ENSG00000104325 and ENSG00000084754 and ENSG00000138029) or (ENSG00000177646 and ENSG00000167969 and ENSG00000104823 and ENSG00000104325 and ENSG00000084754 and ENSG00000138029) or (ENSG00000177646 and ENSG00000198721 and ENSG00000104823 and ENSG00000104325 and ENSG00000084754 and ENSG0000013802)

[feiranl]

LGTM!