Remove utils.runthis().
Remove utils.runthis().

Fixes bug 884825.  The bug was pointing out some unused variables
noticed by pylint.

utils.runthis() was only used in one place and doesn't really provide
much value over utils.execute(), so just remove it.

Change-Id: I3dcc34bd840a128418b58a8a66acb62adf3fc9cc

n0ano/gantt,n0ano/gantt