L2SS-981 removed duplicate property

tangostationcontrol/tangostationcontrol/devices/unb2.py

@@ -63,12 +63,6 @@ class UNB2(opcua_device):
     N_DDR = 2
     N_QSFP = 6
 
-    UNB2_mask_RW_default = device_property(
-        dtype='DevVarBooleanArray',
-        mandatory=False,
-        default_value=[True] * 2
-    )
-
     TRANSLATOR_DEFAULT_SETTINGS = [
         'UNB2_mask_RW',
         'UNB2TR_monitor_rate_RW'