Remove usermod from test setup

We no longer filter recordings by UID, this fixes an issue
where UID 981 was being used on OSCI runners.

Resolves: rhbz#2088460

tests/browser.sh

@@ -59,7 +59,6 @@ echo core > /proc/sys/kernel/core_pattern
 mkdir -p /var/log/journal/
 cp 1.journal /var/log/journal/1.journal
 cp binary-rec.journal /var/log/journal/binary-rec.journal
-usermod -u 981 tlog
 
 # Add local domain for sssd for testSessionRecordingConf test
 cat > /etc/sssd/sssd.conf <<EOF