lua-torch-optim is marked for autoremoval from testing

[Debian testing autoremoval watch]

lua-torch-optim 0~20171127-ga5ceed7-1 is marked for autoremoval from testing on 2018-09-30

It (build-)depends on packages with these RC bugs:
906490: lua-torch-torch7: FTBFS in buster/sid (THGeneral.h: No such file or directory)