verify-kernel-boot-log.sh hotfix: do not override EXIT handler!

Fixes commit 7c2ede0 ("Explicitly invoke start_test() in every
test-case/*.sh") which already did the TODO but _without_ removing
_start_test(). We want one or the other, not a strange and unpredictable
mix of both!

A future commit will actually replace `start_test()`.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>

test-case/verify-kernel-boot-log.sh

@@ -20,7 +20,7 @@ source "$(dirname "${BASH_SOURCE[0]}")"/../case-lib/lib.sh
 
 start_test
 # TODO: replace start_test with this:
-trap 'print_test_result_exit $?' EXIT
+# trap 'print_test_result_exit $?' EXIT
 # https://github.com/thesofproject/sof-test/issues/1112
 
 main()