Remove lowercase api.js
Remove lowercase api.js

+ Thought I had deleted this in earlier refactor PR for Api.js, but because of some weird git config around lowercasing it never actually got deleted
+ This is cool to delete because it's never imported anywhere, Api is always imported as:

```
import Api from '../student_profile/Api.js';
```

studentinsights/studentinsights,studentinsights/studentinsights,studentinsights/studentinsights,studentinsights/studentinsights