Unregisters a console command parsing function
#include <nwadv.h>
LONG UnRegisterConsoleCommand (
struct commandParserStructure *commandParser);
(IN) Points to the command parsing function that is to be unregistered.
This function returns a value of 0 if successful. If the specified command parsing function is not found (has not been registered), it returns a value of -1.
This function should be called to unregister a command parsing function previously defined with RegisterConsoleCommand.