[wasm] Remove obsolete comment

test/cctest/wasm/wasm-run-utils.h

Index: test/cctest/wasm/wasm-run-utils.h
diff --git a/test/cctest/wasm/wasm-run-utils.h b/test/cctest/wasm/wasm-run-utils.h
index 5b727ec2892c968e0419d3a0274b06272a08940e..36531b74b43b7eecf17fde38a13f29281aa425a5 100644
--- a/test/cctest/wasm/wasm-run-utils.h
+++ b/test/cctest/wasm/wasm-run-utils.h
@@ -720,8 +720,6 @@ class WasmRunner : public WasmRunnerBase {
     if (interpret()) return CallInterpreter(p...);
 
     // Use setjmp/longjmp to deal with traps in WebAssembly code.
-    // Make the return value volatile, to give defined semantics if accessed
-    // after setjmp.
     ReturnType return_value = static_cast<ReturnType>(0xdeadbeefdeadbeef);
     static int setjmp_ret;
     setjmp_ret = setjmp(WasmRunnerBase::jump_buffer);