Comment # 1 on bug 904244 from Cedric Simon

Solved by modifying the file /usr/lib/systemd/system/pcscd.service

Remove the $PCSCD_OPTIONS on line 8.

I am not sure what $PCSCD_OPTIONS is used for...

New content:
[Unit]
Description=PC/SC Smart Card Daemon
Requires=pcscd.socket

[Service]
Environment=PCSCD_OPTIONS=""
EnvironmentFile=-/etc/sysconfig/pcscd
ExecStart=/usr/sbin/pcscd --foreground --auto-exit
ExecReload=/usr/sbin/pcscd --hotplug

[Install]
Also=pcscd.socket