fix bug on removing support

This is the success scenario for supporting an initiative, so testing removal of support here is out of scope. Notice how the comment here is really describing another scenario?

I think this test suite can be renamed to a general 'Initiative support'

```
suite('Initiative Support', {
```

And then have just two scenarios, 'Adding support' and 'Removing support'. Ensuring that the suggestion text field is not present after removing support is enough