Merge branch 'remove-unused-images' into 'master'

Remove unused images ## What does this MR do? Remove unused images ``` bg-header.png bg_fallback.png chosen-sprite.png diff_note_add.png icon-search.png icon_sprite.png images.png move.png progress_bar.gif slider_handles.png ``` ## Are there points in the code the reviewer needs to double check? Just need to check if the images are still being used 😄 ## Why was this MR needed? To reduce the technical debt of the project ## What are the relevant issue numbers? Closes #20499 ## Does this MR meet the acceptance criteria? - [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added - [x] Branch has no merge conflicts with `master` (if you do - rebase it please) - [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits) See merge request !5601

Merge branch 'remove-unused-images' into 'master'
7b94f23b · Rémy Coutable · c1fb6d7d · c887a131 · 7b94f23b · c1fb6d7d
Commit 7b94f23b authored Aug 04, 2016 by Rémy Coutable
11 changed files
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -17,6 +17,7 @@ v 8.11.0 (unreleased)
  - Optimize maximum user access level lookup in loading of notes
  - Add "No one can push" as an option for protected branches. !5081
  - Environments have an url to link to
+  - Remove unused images (ClemMakesApps)
  - Limit git rev-list output count to one in forced push check
  - Clean up unused routes (Josef Strzibny)
  - Add green outline to New Branch button. !5447 (winniehell)

--- a/app/assets/images/bg-header.png
+++ b/app/assets/images/bg-header.png
--- a/app/assets/images/bg_fallback.png
+++ b/app/assets/images/bg_fallback.png
--- a/app/assets/images/chosen-sprite.png
+++ b/app/assets/images/chosen-sprite.png
--- a/app/assets/images/diff_note_add.png
+++ b/app/assets/images/diff_note_add.png
--- a/app/assets/images/icon-search.png
+++ b/app/assets/images/icon-search.png
--- a/app/assets/images/icon_sprite.png
+++ b/app/assets/images/icon_sprite.png
--- a/app/assets/images/images.png
+++ b/app/assets/images/images.png
--- a/app/assets/images/move.png
+++ b/app/assets/images/move.png
--- a/app/assets/images/progress_bar.gif
+++ b/app/assets/images/progress_bar.gif
--- a/app/assets/images/slider_handles.png
+++ b/app/assets/images/slider_handles.png