[llvm-testresults] Ditching separate Olden run

[Daniel Dunbar]

Hi,

Is anyone opposed to ditching the "running tests" option of
NewNightlyTest.pl? This is the option which runs Olden separately at
the end of the test run with LARGE_PROBLEM_SIZE.

I don't think this serves any value anymore, but it does make the
results more confusing (since the outputs get written twice), and
currently it seems to break easily when doing parallel compilation (on
my machine, it seems to end up comparing results of the
LARGE_PROBLEM_SIZE run to those from the previous normal run).

I propose that we just kill it.

 - Daniel