remove EventEmitter.min.js

In the [working bower.json spec](https://docs.google.com/a/twitter.com/document/d/1APq7oA9tNao1UYWyOm8dKqlRP2blVkROYLZ2fLIjtWc) we are moving to remove minified files from `main`.

This is a good move. For example, in my [build process for Packery](https://github.com/metafizzy/packery-docs/blob/master/tasks/bower-list-map.js#L29-L33) I have to manually remove `EventEmitter.min.js`, otherwise it appears twice in my concatenated/minified file.