remove systemd service file in image

var/local/mkosi/mkosi.extra/etc/systemd/system/multi-user.target.wants/xcache.service

-/etc/systemd/system/xcache.service
\ No newline at end of file

var/local/mkosi/mkosi.extra/etc/systemd/system/xcache.service

-[Unit]
-Description=XCache
-
-[Service]
-Type=forking
-PermissionsStartOnly=true
-User=xrootd
-ExecStart=/usr/bin/xrootd -c /etc/xrootd/xcache.cfg
-LimitNOFILE=16384
-Restart=always
-SuccessExitStatus=1
-Environment=LD_PRELOAD=/usr/lib64/libtcmalloc.so
-Environment=TCMALLOC_RELEASE_RATE=10
-
-[Install]
-WantedBy=multi-user.target