Mop up remaining references to multiple source versions
Mop up remaining references to multiple source versions

jonathan-fielding/polyfill-service,kdzwinel/polyfill-service,mcshaz/polyfill-service,kdzwinel/polyfill-service,kdzwinel/polyfill-service,mcshaz/polyfill-service,mcshaz/polyfill-service,jonathan-fielding/polyfill-service,jonathan-fielding/polyfill-service,JakeChampion/polyfill-service,JakeChampion/polyfill-service