Remove JP (#3)

This just removed #if CHUUKEI code which seems to be some sort of ASCII movie client type thing (long dead, no doubt).

No code seemed to be calling into anything in chuukei.c so I completely removed it.

This code is done on top of remove-jp-2, so you might want to pull that first. (But I see that github is showing the commits relative to master, so it should be OK to just pull this and close the remove-jp-2 pull request).