This morning during the DTS call we discussed how we were removing the build
process method for building example apps (example apps will not be used in new
DTS) and remove the helloworld testsuite accordingly. 

The question was raised of whether the helloworld testsuite has any actual
value and whether it should be replaced or not. One point made was that running
the helloworld suite can be a sanity check for a user, showing that they have
setup their environment correctly, and are running the testsuite correctly. So,
there may be a use case for continuing to provide such a testsuite which
essentially does nothing. 

Paul proposed that we replace it with a suite which just starts testpmd, does
nothing (or something inconsequential) and then stops.