Bug 1060312 - The sample config is optional, so don't use it for tests
Bug 1060312 - The sample config is optional, so don't use it for tests

The sample config now points at the production service API to make
the first-run experience for new contributors easier. However the tests
use the sample config as part of the test run, so this breaks them.
However since the sample config is now optional, we can just not use it
at all during the tests to fix the failures.

vaishalitekale/treeherder,kapy2010/treeherder,parkouss/treeherder,gbrmachado/treeherder,moijes12/treeherder,moijes12/treeherder,gbrmachado/treeherder,gbrmachado/treeherder,vaishalitekale/treeherder,parkouss/treeherder,gbrmachado/treeherder,sylvestre/treeherder,kapy2010/treeherder,adusca/treeherder,gbrmachado/treeherder,adusca/treeherder,glenn124f/treeherder,moijes12/treeherder,parkouss/treeherder,jgraham/treeherder,rail/treeherder,jgraham/treeherder,edmorley/treeherder,jgraham/treeherder,jgraham/treeherder,glenn124f/treeherder,akhileshpillai/treeherder,avih/treeherder,sylvestre/treeherder,deathping1994/treeherder,glenn124f/treeherder,rail/treeherder,avih/treeherder,wlach/treeherder,KWierso/treeherder,tojonmz/treeherder,sylvestre/treeherder,deathping1994/treeherder,adusca/treeherder,vaishalitekale/treeherder,adusca/treeherder,kapy2010/treeherder,sylvestre/treeherder,adusca/treeherder,avih/treeherder,edmorley/treeherder,vaishalitekale/treeherder,tojonmz/treeherder,glenn124f/treeherder,parkouss/treeherder,wlach/treeherder,wlach/treeherder,wlach/treeherder,sylvestre/treeherder,akhileshpillai/treeherder,akhileshpillai/treeherder,wlach/treeherder,avih/treeherder,tojonmz/treeherder,wlach/treeherder,jgraham/treeherder,rail/treeherder,moijes12/treeherder,deathping1994/treeherder,edmorley/treeherder,jgraham/treeherder,kapy2010/treeherder,tojonmz/treeherder,vaishalitekale/treeherder,akhileshpillai/treeherder,avih/treeherder,sylvestre/treeherder,rail/treeherder,tojonmz/treeherder,parkouss/treeherder,gbrmachado/treeherder,tojon/treeherder,tojon/treeherder,KWierso/treeherder,rail/treeherder,deathping1994/treeherder,avih/treeherder,KWierso/treeherder,glenn124f/treeherder,tojonmz/treeherder,moijes12/treeherder,akhileshpillai/treeherder,glenn124f/treeherder,tojon/treeherder,parkouss/treeherder,deathping1994/treeherder,kapy2010/treeherder,moijes12/treeherder,tojon/treeherder,rail/treeherder,vaishalitekale/treeherder,edmorley/treeherder,adusca/treeherder,deathping1994/treeherder,KWierso/treeherder,akhileshpillai/treeherder