How to remove language pack "English-United Kingdom:en-GB" from windows8.1 iso image

sir i have downloaded windows 8.1 and it has having default language English-united kingdom: en-GB

then i have downloaded language pack English-united states: en-US  for windows 8.1

and i have added to this language pack into windows 8.1 iso image using DISM successfully,
also i have set default language: English-united states: en-US using DISM command:
dism /get-intl
dism /set-allintl:en-us

now i want to remove previous language pack "English-united kingdom:en-GB"  using DISM, what is the command to remove this?