Delete an existing Project MetadataField. Existing MetadataField's with the same value with be automatically removed. Requires basic:write scope to be accessible and Project permission level EDIT.
All mutations have exactly one input field called input with a unique input and return type. This is useful to write mutations with variables, so there is always one single variable per mutation. This makes it easier to use and reuse them.
Id of the MetadataField to delete.
The Id of the deleted MetadataField.
Deleted MetadataField.