Farmer tabs are retaining deleted values from species

[anthonymarkQA]

Describe the bug
Values for crops, livestock, aquaculture are retained even when deleting the corresponding value from Configuration>species in Farmer Registry

To Reproduce

1. go to farmer-registry QA
2. In registry select a farm group
3. go to crop agriculture tab, and add a new value, select whatever crop you wish.
4. under purpose column, add anything you want.
5. after saving. go to Configuration>species
6. search for the value that you have added from step 3
7. click on the checkbox beside it >click action>delete.
8. go back to the particular farmer selected from step 2
9. click on crop agriculture tab, notice under species column, there is no more value but the line created still exists.

Expected behavior
When a value is deleted from Registry>Configuration>species, it should also remove the already existing relationship with the farm groups that have it.
Screenshots

Additional context

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