diff --git a/libs/main/units/piunits_value.h b/libs/main/units/piunits_value.h
index 97c36377..16be94dc 100644
--- a/libs/main/units/piunits_value.h
+++ b/libs/main/units/piunits_value.h
@@ -30,28 +30,7 @@
 
 
 namespace PIUnits {
-/*
-    enum class Angle {
-        Degree = 0x200,
-        Radian,
-    };
-    enum class Time {
-        Second = 0x300,
-        Hertz,
-    };
-    enum class Temperature {
-        Kelvin = 0x400,
-        Celsius,
-        Fahrenheit,
-    };
-    enum class Pressure {
-        Pascal = 0x500,
-    };
-    enum class Distance {
-        Meter = 0x500,
-    };
-};
-*/
+
 class PIP_EXPORT Value {
 public:
 	Value(double v = 0., int t = Class::Invalid);