[RMcNeal]

Assuming it's like mine, there is a low point drain under the kitchen slide for the ice maker line. If you drain it and leave it open, that should do it. Since my fridge is in the slide out, there's also a flexible line attached under the slide. Make sure you disconnect and drain it as well.
I replumbed my fridge inside to use bottled water as we don't drink CG water at all, so those lines are empty on my rig. Just turned the valve off under the sink that feeds the ice maker and hooked a bottled water pump directly to the fridge inside under the cabinet.