- Delete TestExecutionSite and its run_junit exclusion since it is pure
  legacy ExecutionSite (and some legacy DTXN) testing.
-- Delete executionsitefuzz package, used purely for fuzz-testing the
   legacy ExecutionSite.
- Add a defect number for TestIV2BlacklistSaveRestoreSysprocSuite
- Remove duplicate exclusion of TestMaliciousClientSuite