Remove duplicated domain variable.
Remove duplicated domain variable.

This exists within the containing IIFE's scope.

aprescott/diffa,lshift/diffa,0x6e6562/diffa,0x6e6562/diffa,lshift/diffa,lshift/diffa,0x6e6562/diffa,lshift/diffa,aprescott/diffa,aprescott/diffa,0x6e6562/diffa,aprescott/diffa,lshift/diffa