DeleteCampaignVariable

// This will remove ANY campaign variable. Regardless of type.
// Note that by normal database standards, deleting does not actually removed the entry from
// the database, but flags it as deleted. Do not expect the database files to shrink in size
// from this command. If you want to 'pack' the database, you will have to do it externally
// from the game.
// AFW-OEI 09/08/2006: Campaign DB functions are not currently supported.
void DeleteCampaignVariable(string sCampaignName, string sVarName, object oPlayer=OBJECT_INVALID);