Revert "Binds findAllImages method in HomeController"

Reverts codeBelt/NodeJS#1

Reverting because it does work when you remove the code below  (line 30-38) which we are that we are trying to replace.

```
ImageModel.find({}, {}, { sort: { timestamp: -1 }},
    function(err, images) {
        if (err) { throw err; }

        viewModel.images = images;
        sidebar(viewModel, function(viewModel) {
            res.render('index', viewModel);
        });
    });
```