LibJS: Remove bytecode condition from tests expected to fail

Author: https://github.com/trflynn89
Commit: 375a6f5dd9
Pull-request: https://github.com/SerenityOS/serenity/pull/20461
Reviewed-by: https://github.com/Lubrsi ✅

Userland/Libraries/LibJS/Tests/strict-mode-errors.js

@@ -1,6 +1,6 @@
 "use strict";
 
-test.xfailIf(isBytecodeInterpreterEnabled(), "basic functionality", () => {
+test.xfail("basic functionality", () => {
     [true, false, "foo", 123].forEach(primitive => {
         expect(() => {
             primitive.foo = "bar";