Revert "rake task to load fixtures with pg/heroku issue"
Revert "rake task to load fixtures with pg/heroku issue"

This reverts commit 82b096adaaad7368fe1f343181a9d39694bfa0b9.

GraphQLAcademy/swapi-graphql-ruby,GraphQLAcademy/swapi-graphql-ruby,GraphQLAcademy/swapi-graphql-ruby