ethercatmcEL6688-PTP.template: Remove alarms from PTPOffset

The old HIGH and LOW alarm values with +/- 20000nsec are removed
from EPICS.
In the new MCU code, these values had been changed to 5000 nsec.
The alarms are generated inside the MCU, so there is no need to
define any values inside the EPICS IOC: Remove them

ethercatmcApp/Db/ethercatmcEL6688-PTP.template

@@ -46,11 +46,6 @@ record(longin, "$(PREFIX)PTPOffset")
     field(DTYP, "asynInt32")
     field(DESC, "PTPOffset")
     field(EGU,  "ns")
-    field(HIGH, "20000")
-    field(LOW,  "-20000")
-    field(HSV,  "1")
-    field(LSV,  "1")
-    field(HYST, "50")
     field(INP,  "@asyn($(MOTOR_PORT),0)PTPOffset")
     field(SCAN, "1 second")
 }