remove some dead code
remove some dead code

The ERS() macro returns, so no code after that gets run.

cnc-club/linuxcnc,cdsteinkuehler/MachineKit,Cid427/machinekit,EqAfrica/machinekit,cdsteinkuehler/linuxcnc,RunningLight/machinekit,unseenlaser/machinekit,mhaberler/machinekit,unseenlaser/linuxcnc,ikcalB/linuxcnc-mirror,cdsteinkuehler/linuxcnc,bobvanderlinden/machinekit,mhaberler/machinekit,bobvanderlinden/machinekit,cnc-club/linuxcnc,cnc-club/linuxcnc,Cid427/machinekit,cnc-club/linuxcnc,unseenlaser/linuxcnc,narogon/linuxcnc,kinsamanka/machinekit,narogon/linuxcnc,ArcEye/machinekit-testing,Cid427/machinekit,ianmcmahon/linuxcnc-mirror,bobvanderlinden/machinekit,kinsamanka/machinekit,aschiffler/linuxcnc,ArcEye/MK-Qt5,kinsamanka/machinekit,jaguarcat79/ILC-with-LinuxCNC,aschiffler/linuxcnc,araisrobo/machinekit,ArcEye/MK-Qt5,RunningLight/machinekit,kinsamanka/machinekit,ArcEye/machinekit-testing,unseenlaser/linuxcnc,araisrobo/machinekit,ikcalB/linuxcnc-mirror,ArcEye/MK-Qt5,strahlex/machinekit,bmwiedemann/linuxcnc-mirror,unseenlaser/machinekit,strahlex/machinekit,mhaberler/machinekit,RunningLight/machinekit,EqAfrica/machinekit,narogon/linuxcnc,bmwiedemann/linuxcnc-mirror,cdsteinkuehler/MachineKit,araisrobo/machinekit,strahlex/machinekit,ianmcmahon/linuxcnc-mirror,RunningLight/machinekit,cdsteinkuehler/linuxcnc,araisrobo/machinekit,mhaberler/machinekit,Cid427/machinekit,jaguarcat79/ILC-with-LinuxCNC,bmwiedemann/linuxcnc-mirror,mhaberler/machinekit,bobvanderlinden/machinekit,ArcEye/machinekit-testing,cdsteinkuehler/linuxcnc,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,araisrobo/machinekit,bobvanderlinden/machinekit,mhaberler/machinekit,strahlex/machinekit,cnc-club/linuxcnc,ArcEye/MK-Qt5,jaguarcat79/ILC-with-LinuxCNC,narogon/linuxcnc,ArcEye/machinekit-testing,Cid427/machinekit,EqAfrica/machinekit,strahlex/machinekit,aschiffler/linuxcnc,unseenlaser/machinekit,kinsamanka/machinekit,ikcalB/linuxcnc-mirror,ianmcmahon/linuxcnc-mirror,RunningLight/machinekit,ArcEye/MK-Qt5,ArcEye/MK-Qt5,cdsteinkuehler/MachineKit,araisrobo/machinekit,aschiffler/linuxcnc,bobvanderlinden/machinekit,EqAfrica/machinekit,cdsteinkuehler/MachineKit,unseenlaser/machinekit,kinsamanka/machinekit,mhaberler/machinekit,EqAfrica/machinekit,ikcalB/linuxcnc-mirror,EqAfrica/machinekit,ArcEye/machinekit-testing,Cid427/machinekit,ArcEye/machinekit-testing,bmwiedemann/linuxcnc-mirror,ArcEye/MK-Qt5,ArcEye/machinekit-testing,cdsteinkuehler/linuxcnc,araisrobo/machinekit,unseenlaser/linuxcnc,kinsamanka/machinekit,araisrobo/machinekit,bmwiedemann/linuxcnc-mirror,cnc-club/linuxcnc,bmwiedemann/linuxcnc-mirror,RunningLight/machinekit,ianmcmahon/linuxcnc-mirror,araisrobo/machinekit,ArcEye/MK-Qt5,ianmcmahon/linuxcnc-mirror,cdsteinkuehler/linuxcnc,cnc-club/linuxcnc,strahlex/machinekit,unseenlaser/machinekit,unseenlaser/machinekit,EqAfrica/machinekit,Cid427/machinekit,cdsteinkuehler/MachineKit,strahlex/machinekit,Cid427/machinekit,ikcalB/linuxcnc-mirror,jaguarcat79/ILC-with-LinuxCNC,unseenlaser/machinekit,bmwiedemann/linuxcnc-mirror,cdsteinkuehler/MachineKit,unseenlaser/machinekit,jaguarcat79/ILC-with-LinuxCNC,ianmcmahon/linuxcnc-mirror,kinsamanka/machinekit,mhaberler/machinekit,RunningLight/machinekit,unseenlaser/linuxcnc,ianmcmahon/linuxcnc-mirror,EqAfrica/machinekit,ikcalB/linuxcnc-mirror,narogon/linuxcnc,bobvanderlinden/machinekit,ArcEye/machinekit-testing,RunningLight/machinekit,aschiffler/linuxcnc