diff --git a/naga/src/valid/expression.rs b/naga/src/valid/expression.rs
index ba99211f07..09dd768e24 100644
--- a/naga/src/valid/expression.rs
+++ b/naga/src/valid/expression.rs
@@ -1793,46 +1793,3 @@ fn f64_const_literals() {
     );
     assert!(result.is_ok());
 }
-
-/// Using I64 in a function's expression arena is forbidden.
-#[test]
-fn i64_runtime_literals() {
-    let result = validate_with_expression(
-        crate::Expression::Literal(crate::Literal::I64(1729)),
-        // There is no capability that enables this.
-        super::Capabilities::all(),
-    );
-    let error = result.unwrap_err().into_inner();
-    assert!(matches!(
-        error,
-        crate::valid::ValidationError::Function {
-            source: super::FunctionError::Expression {
-                source: super::ExpressionError::Literal(super::LiteralError::Width(
-                    super::r#type::WidthError::Unsupported64Bit
-                ),),
-                ..
-            },
-            ..
-        }
-    ));
-}
-
-/// Using I64 in a module's constant expression arena is forbidden.
-#[test]
-fn i64_const_literals() {
-    let result = validate_with_const_expression(
-        crate::Expression::Literal(crate::Literal::I64(1729)),
-        // There is no capability that enables this.
-        super::Capabilities::all(),
-    );
-    let error = result.unwrap_err().into_inner();
-    assert!(matches!(
-        error,
-        crate::valid::ValidationError::ConstExpression {
-            source: super::ConstExpressionError::Literal(super::LiteralError::Width(
-                super::r#type::WidthError::Unsupported64Bit,
-            ),),
-            ..
-        }
-    ));
-}