We don't run cidb_integration_tests automatically, because it proved to be overly flaky.

Of course, that has allowed the tests to break on TOT with nobody noticing.

 lib/cidb_integration_test
.......................s...F.
======================================================================
FAIL: [chromite.lib.cidb_integration_test] HWTestResultTableTest.testHWTestResults
Test Insert and Get operations on hwTestResultTable.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/mnt/host/source/chromite/lib/timeout_util.py", line 191, in TimeoutWrapper
    return func(*args, **kwargs)
  File "/mnt/host/source/chromite/lib/cidb_integration_test.py", line 1122, in testHWTestResults
    self.assertRaises(AssertionError, bot_db.GetHWTestResultsForBuilds([]))
  File "/mnt/host/source/chromite/lib/cidb.py", line 116, in wrapper
    return f(self, *args, **kwargs)
  File "/mnt/host/source/chromite/lib/cidb.py", line 1988, in GetHWTestResultsForBuilds
    raise AssertionError("Build ID's are empty.")
AssertionError: Build ID's are empty.

----------------------------------------------------------------------
Ran 29 tests in 536.566s