Fix compilation errors

Author: javierdiaz72

docs/agda-spec/src/Interface/HasOrder/Instance.agda

@@ -26,10 +26,6 @@ instance
 
   open import Data.Rational using (ℚ)
   import Data.Rational.Properties as Rat hiding (_≟_)
-
-  ℚ-Dec-≤ = ⁇² Rat._≤?_
-  ℚ-Dec-< = ⁇² Rat._<?_
-
   ℚ-hasPreorder = hasPreorderFromNonStrict Rat.≤-isPreorder _≟_
   ℚ-hasPartialOrder = HasPartialOrder ∋ record { ≤-antisym = Rat.≤-antisym }
   ℚ-hasDecPartialOrder = HasDecPartialOrder {A = ℚ} ∋ record {}