Perthings: derive PartialOrd and Ord under no_std. (#4309)

substrate/primitives/sr-arithmetic/src/per_things.rs

@@ -27,8 +27,8 @@ macro_rules! implement_per_thing {
 		/// A fixed point representation of a number between in the range [0, 1].
 		///
 		#[doc = $title]
-		#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Ord, PartialOrd))]
-		#[derive(Encode, Decode, Default, Copy, Clone, PartialEq, Eq, RuntimeDebug, CompactAs)]
+		#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
+		#[derive(Encode, Decode, Default, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, RuntimeDebug, CompactAs)]
 		pub struct $name($type);
 
 		impl $name {