tests: qemuxml2argv: Remove unused output of 'mlock-on' legacy test

The test data was modernized to use actual caps but commit 4dadcaa9
forgot to delete this test data.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>

tests/qemuxml2argvdata/mlock-on.args

-LC_ALL=C \
-PATH=/bin \
-HOME=/tmp/lib/domain--1-QEMUGuest1 \
-USER=test \
-LOGNAME=test \
-XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
-XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
-XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
-QEMU_AUDIO_DRV=none \
-/usr/bin/qemu-system-i686 \
--name QEMUGuest1 \
--S \
--machine pc,accel=tcg,usb=off,dump-guest-core=off \
--m 214 \
--overcommit mem-lock=on \
--smp 1,sockets=1,cores=1,threads=1 \
--uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
--display none \
--no-user-config \
--nodefaults \
--chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\
-server,nowait \
--mon chardev=charmonitor,id=monitor,mode=control \
--rtc base=utc \
--no-shutdown \
--no-acpi \
--usb