Revert "Merge branch '1.6/develop_japanese' of https://github.com/NEKOGET/FuelPHP_docs_jp into 1.6/develop_japanese"

This reverts commit 34b9fefd51ed0edae9d89f7d848fb27cacc34743, reversing
changes made to 0cb8881dea2d57984d742b017dacec3aef614465.
Revert "Merge branch '1.6/develop_japanese' of https://github.com/sharkpp/FuelPHP_docs_jp into 1.6/develop_japanese"

This reverts commit 0cb8881dea2d57984d742b017dacec3aef614465, reversing
changes made to 538470c38c504655da33b1a17019cd30bddf11fb.