refactor: remove doReload arg used only for testing

We run unit tests in “strict” mode and thus can’t monkey-patch `window.location` nor `window.location.reload`. In order to avoid full page reload, we could pass location as argument, or another level of indirection, something like this:
```js
var ourGlobalFunkyLocation = window.location;
function reloadWithDebugInfo() {
  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;
  ourGlobalFunkyLocation.reload();
}

// in the test
ourGlobalFunkyLocation = {
  reload: function() {}
};
reloadWithDebugInfo();
ourGlobalFunkyLocation = window.location;
```

I don’t think any of these make sense, just so that we can test setting `window.name`. If the `reloadWithDebugInfo` function was more complicated, I would do it.

I don’t think it’s worthy to confuse production code with extra logic which purpose was only to make testing possible.