chore: remove useless Hash impl

src/bytecode.rs

@@ -1,5 +1,3 @@
-use std::hash::Hash;
-
 use ecow::EcoString;
 
 use crate::ty::internal::{Const, Param};
@@ -94,7 +92,7 @@ pub enum OpCode {
     NoOp,
 }
 
-#[derive(Debug, Clone, Copy, Hash)]
+#[derive(Debug, Clone, Copy)]
 pub enum BinOp {
     Add,
     And,
@@ -104,7 +102,7 @@ pub enum BinOp {
     Upd,
 }
 
-#[derive(Debug, Clone, Copy, Hash)]
+#[derive(Debug, Clone, Copy)]
 pub enum UnOp {
     Not,
 }