Backport 1.16.x Upgrade test: remove outdated test and disable log due to verbosity (…#18413

huikang merged 2 commits intorelease/1.16.xhashicorp/consul:release/1.16.xfrom

release/1.16.x-integ-test-upgrade-testhashicorp/consul:release/1.16.x-integ-test-upgrade-testCopy head branch name to clipboard