Bug 987224 - [B2G][Video]Unable to watch videos in video app after delet...

...ing two videos

Move call to resetCurrentVideo to videoDeleted to ensure when there are multiple deletions the previously deleted thumbnail will be removed from thumbnail list before resetCurrentVideo is called.

https://github.com/mozilla-b2g/gaia/pull/17664 is no good due to travis linter failure. Trying again with new PR...