Remove system test stress
There are multiple reasons to remove this test as obsolete: - The test has no clear failure condition and always succeeds. - It isn't clear what is the test purpose and what's it's supposed to test. - It isn't part of the test suite either in CI or locally unless it is explicitly enabled. As a result, there are many issues which prevent the test from being executed caused by various refactoring efforts accumulated over time. - The test has probably never been executed in automated manner, since it's not part of the default test suite for over 20 years (see ddec026f).