Removes the sobgroup <sSobGroupName> belonging to the CPU player <iPlayerIndex> from AI control.
This makes it possible to issue scripted orders to a sobgroup without the AI overriding them, and without having call the CPU_Enable function.
Note: to restore AI control over a sobgroup, use the CPU_AddSobGroup function.

<iPlayerIndex>: the index number of a CPU player.
<sSobGroupName>: the name of the sobgroup.