integration tests: do not adjust log level in the test script

We passes log level through kernel command line. It is not necessary to
set to debug level at the beginning, and set to info at the end.
This is important when a test has several subtests. If a subtest sets
log level to info at the end, then subsequent tests may not generate any
useful logs.

test/units/TEST-59-RELOADING-RESTART.sh

@@ -3,11 +3,6 @@
 set -eux
 set -o pipefail
 
-fail() {
-    systemd-analyze log-level info
-    exit 1
-}
-
 # Wait for a service to enter a state within a timeout period, if it doesn't
 # enter the desired state within the timeout period then this function will
 # exit the test case with a non zero exit code.
@@ -27,9 +22,6 @@ wait_on_state_or_fail() {
     done
 }
 
-systemd-analyze log-level debug
-
-
 cat >/run/systemd/system/testservice-fail-59.service <<EOF
 [Unit]
 Description=TEST-59-RELOADING-RESTART Normal exit
@@ -83,8 +75,6 @@ systemctl start testservice-abort-restart-59.service
 systemctl --signal=SIGABRT kill testservice-abort-restart-59.service
 wait_on_state_or_fail "testservice-abort-restart-59.service" "failed" "30"
 
-systemd-analyze log-level info
-
 # Test that rate-limiting daemon-reload works
 mkdir -p /run/systemd/system.conf.d/
 cat >/run/systemd/system.conf.d/50-test-59-reload.conf <<EOF
@@ -152,8 +142,6 @@ EOF
 
 chmod +x /run/notify-reload-test.sh
 
-systemd-analyze log-level debug
-
 systemd-run --unit notify-reload-test -p Type=notify-reload -p KillMode=process /run/notify-reload-test.sh
 systemctl reload notify-reload-test
 systemctl stop notify-reload-test
@@ -163,8 +151,6 @@ test "$(systemctl show -p ExecMainStatus --value notify-reload-test)" = 109
 systemctl reset-failed notify-reload-test
 rm /run/notify-reload-test.sh
 
-systemd-analyze log-level info
-
 # Ensure that, with system log level info, we get debug level messages when a unit fails to start and is
 # restarted with RestartMode=debug
 cat >/run/systemd/system/testservice-fail-restart-debug-59.service <<EOF