When removing genes from a person in pedigree editor, all associated gene variants need to be removed too

Steps to reproduce:
1. Open any patient record and add genes with variants
2. Save
3. Open pedigree editor
4. Remove the added gene from patient
5. Save
6. Close pedigree editor and observe that deleted gene isn't shown
7. Add the same gene
8. Save & view summary
9. Observe that the variants entered in Step #1 are still there