Print timing inside overall test reporting

[giordano]

Test.DefaultTestSet natively supports showing time tests took, we don't need to print it separately.

[vchuravy]

Right so you are saying:

Test Summary: | Pass  Total  Time
  Overall     |    3      3  2.9s
    SUCCESS

Is sufficient

[vchuravy]

Whereas before we had:

Testing finished in 2 seconds, 511 milliseconds

Test Summary: | Pass  Total  Time
  Overall     |    1      1

[giordano]

Yes. I guess this part was originally written when Test.DefaultTestSet didn't support timing.