diff --git a/app/assets/images/branding/logos/header-logo.png b/app/assets/images/branding/logos/header-logo.png
deleted file mode 100644
index 0e47dd91e..000000000
Binary files a/app/assets/images/branding/logos/header-logo.png and /dev/null differ
diff --git a/app/assets/images/favicon.ico b/app/assets/images/favicon.ico
deleted file mode 100644
index c07db7363..000000000
Binary files a/app/assets/images/favicon.ico and /dev/null differ
diff --git a/app/assets/images/header-bg-long.jpg b/app/assets/images/header-bg-long.jpg
deleted file mode 100644
index da0492bc7..000000000
Binary files a/app/assets/images/header-bg-long.jpg and /dev/null differ
diff --git a/app/assets/images/header-bg.png b/app/assets/images/header-bg.png
deleted file mode 100644
index fa7d7d8aa..000000000
Binary files a/app/assets/images/header-bg.png and /dev/null differ
diff --git a/app/assets/images/icons/mail_grey.png b/app/assets/images/icons/mail_grey.png
deleted file mode 100644
index 3f503af53..000000000
Binary files a/app/assets/images/icons/mail_grey.png and /dev/null differ
diff --git a/app/assets/images/icons/mail_grey_hover.png b/app/assets/images/icons/mail_grey_hover.png
deleted file mode 100644
index a4dbff838..000000000
Binary files a/app/assets/images/icons/mail_grey_hover.png and /dev/null differ
diff --git a/app/assets/images/icons/notifications_grey.png b/app/assets/images/icons/notifications_grey.png
deleted file mode 100644
index 78ad7c779..000000000
Binary files a/app/assets/images/icons/notifications_grey.png and /dev/null differ
diff --git a/app/assets/images/icons/notifications_grey_hover.png b/app/assets/images/icons/notifications_grey_hover.png
deleted file mode 100644
index 4558a55a9..000000000
Binary files a/app/assets/images/icons/notifications_grey_hover.png and /dev/null differ
diff --git a/app/assets/images/img/glyphicons-halflings-blue.png b/app/assets/images/img/glyphicons-halflings-blue.png
deleted file mode 100644
index a8dca0fcc..000000000
Binary files a/app/assets/images/img/glyphicons-halflings-blue.png and /dev/null differ
diff --git a/app/assets/images/img/glyphicons-halflings-red.png b/app/assets/images/img/glyphicons-halflings-red.png
deleted file mode 100644
index 30c315fe0..000000000
Binary files a/app/assets/images/img/glyphicons-halflings-red.png and /dev/null differ
diff --git a/app/assets/stylesheets/sprites.scss b/app/assets/stylesheets/sprites.scss
index e78a5c3d9..bef149df9 100644
--- a/app/assets/stylesheets/sprites.scss
+++ b/app/assets/stylesheets/sprites.scss
@@ -1,7 +1,5 @@
 /* ===== sprites ===== */
-@import 'icons/*.png';
 @import 'branding/logos/*.png';
 @import 'social_media_logos/*.png';
-@include all-icons-sprites;
 @include all-logos-sprites;
 @include all-social_media_logos-sprites;