hello.
what do you mean by "remove"?
if no one will join to the channel, it will be empty.
thats all.
(there is a drop command for the channel, but i do not recommend it - cuz ppl could still join and even register it.)
why dont you set an akick for everbody and mentio in the kick msg that the channel has been moved to blah blah ?
some ideas for you:
change topic, entry msg and desc, to point ppl to the new channel.
/cs help set restricted
/cs help akick
(mask *!*@*; reason: same as above.. point ppl to the right place.)