webos-image: luna-service2=161

:Release Notes:
Correct some memory leaks in the unit tests

:Detailed Notes:
There were a few missed cleanup functions and memory checker had
some complaints on this.

Test with deallocated mutex was removed from the incoming transport test.
test_clock and test_timersource were excluded from the `check` target
to speed up its execution.
submissions/160..submissions/161
126731c Fix memory cleanup in tests

:Testing Performed:
Re-ran full unit test suite and checked for leaks

:QA Notes:
Does not change the image.

:Issues Addressed:
[GF-45921] LS2: Investigate and fix potential memory leaks
[GF-46379] CCC: luna-service2=161

Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@lge.com>

Change-Id: Ieea3067f02d867279239d49a4b2d1b510f0bca64
Reviewed-on: https://g2g.palm.com/3891
Build: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>