message: remove unused WasmTestResult
diff: @@ -169,10 +169,6 @@ impl<S> Clone for WasmTestBuilder<S> {
  }
  }
  -/// A wrapper type to disambiguate builder from an actual result
  -#[derive(Clone)]
  -pub struct WasmTestResult<S>(WasmTestBuilder<S>);
  -
  impl InMemoryWasmTestBuilder {
  /// Returns an [`InMemoryWasmTestBuilder`].
  pub fn new(
  