Organization delete - Allow to delete with multiple members

@ mention of reviewers`

@Didayolo`

A brief description of the purpose of the changes contained in this PR.

Previously when organizations had more than one members, the delete functionality would not work. Now organizations with multiple members can be deleted.

Issues this PR resolves

• #805 (closed) -> Bug # 3

Checklist

• Code review by me
• Hand tested by me
• I'm proud of my work
• Code review by reviewer
• Hand tested by reviewer
• CircleCi tests are passing
• Ready to merge