Use split-out storyboard module

This uses the source install modules functionality to grab the storyboard
module. It pins to the commit hash right now so we will need to update that
periodically.

This removes the storyboard module directory entirely since we no longer
need it.

Change-Id: Iceab5501fa0c177f55db1a6b723b6b215fca9ed0
Merge "Use split-out storyboard module"