Remove errant `bower.json.ember-try`.
Remove errant `bower.json.ember-try`.

This file is written by `ember try:testall` as a way to remember the last value for `bower.json` (does the same for `package.json` now too).  This is generally not supposed to be checked in (we should look at adding it to the `.gitignore`).
jeradg/ember-concurrency,machty/ember-concurrency,machty/ember-concurrency,jeradg/ember-concurrency,jeradg/ember-concurrency,machty/ember-concurrency,machty/ember-concurrency,jeradg/ember-concurrency