Too bad that so many years even Valve with their CSBot didn't suspected that this is the problem... Nice that you have found it!
By the mean "deleting these lines" are you saying that we should unset them for the bot like that:
Code:
SET_CLIENT_KEYVALUE (index + 1, infobuffer, "cl_lw", "0");
SET_CLIENT_KEYVALUE (index + 1, infobuffer, "cl_lc", "0");
or there is something more specific that should be done.