Remove lua_e introduction from nyagos_ja.md
Remove lua_e introduction from nyagos_ja.md

Because it is included in other documents.

hattya/nyagos,tyochiai/nyagos,hattya/nyagos,hattya/nyagos,nocd5/nyagos,zetamatta/nyagos,kissthink/nyagos,kissthink/nyagos,kissthink/nyagos,tsuyoshicho/nyagos