Ignore Site::PetitionRemoved errors
Ignore Site::PetitionRemoved errors

It's a 410 Gone response so no need to alert Appsignal.

unboxed/e-petitions,alphagov/e-petitions,unboxed/e-petitions,unboxed/e-petitions,alphagov/e-petitions,alphagov/e-petitions,alphagov/e-petitions,unboxed/e-petitions