Revert "Merge pull request #332 from tsg-ut/naan/mahjong_simple_name"
Revert "Merge pull request #332 from tsg-ut/naan/mahjong_simple_name"

This reverts commit d7f8398daf4556efbdc837b4239f00d5a8db74ad, reversing
changes made to c11c2da9c1d53cef1de96a272efbb3b96e0e6fd7.

tsg-ut/slackbot,tsg-ut/slackbot,tsg-ut/slackbot,tsg-ut/slackbot,tsg-ut/slackbot,tsg-ut/slackbot