I've disabled all language packs, but there are two that remain (outside of my native language, en-US): de-DE and ja-JP.  These take up 500MB and I don't (think I) need them.  In vLite's integration tab under "Language Pack" I see "Already integrated language packs".  These languages are listed there.   Are these needed?  Is there a way via vLite to remove these?  Or can I delete the folders under /LangPacks (which each include an LP.CAB file).