This key isn't used since f394a34c . Removing
it ensures translators don't bother translating it for nothing

Added checkmarks to strings that are showing up in admin/stats after successfully finished progress. This helps a lot to better see a finished progress,

https://github.com/q2a/question2answer/pull/598

Closes #196.

Set to Unix line endings in repo; the gitattributes file means they
will be converted to suit the user’s system.