cxx: fixed stack smash test case failing due to changed output

__stack_chk_fail no longer prints "abort() was called" message,
changed test case to reflect this.

components/cxx/test_apps/general/pytest_cxx_general.py

@@ -38,5 +38,4 @@ def test_cxx_stack_smash(dut: Dut) -> None:
     dut.expect_exact('Press ENTER to see the list of tests')
     dut.write('\"stack smashing protection CXX\"')
     dut.expect_exact('Stack smashing protect failure!')
-    dut.expect_exact('abort() was called')
     dut.expect_exact('Rebooting...')