Consider whether to include standard "ignored addons"

[dgeb]

This list of ignored addons was carried over from ember-cli-dependency-lint: https://github.com/dgeb/ember-cli-addon-guard/blob/master/lib/utils/discover-addon-versions.js#L59-L67

However, since ember-cli-addon-guard checks whether addons have "run-time" contents, it's probably safe to remove this list. The tradeoff is between increased noise from maintaining such a list vs. using it to reduce processing time by a tiny bit.