diff --git a/AUTHORS b/AUTHORS
index 7e0d8f6587b..2dd7fb92642 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -26,6 +26,3 @@ With help from many libraries and frameworks including:
 	SabreDAV
 	jQuery
 	…
-
-"Lock” symbol from thenounproject.com collection
-"Clock” symbol by Brandon Hopkins, from thenounproject.com collection
diff --git a/core/css/icons.css b/core/css/icons.css
index 60f0b1b8c60..508fe700ae7 100644
--- a/core/css/icons.css
+++ b/core/css/icons.css
@@ -46,10 +46,6 @@
 	background-image: url('../img/actions/checkmark-white.svg');
 }
 
-.icon-clock {
-	background-image: url('../img/actions/clock.svg');
-}
-
 .icon-close {
 	background-image: url('../img/actions/close.svg');
 }
@@ -78,10 +74,6 @@
 	background-image: url('../img/actions/info.svg');
 }
 
-.icon-lock {
-	background-image: url('../img/actions/lock.svg');
-}
-
 .icon-logout {
 	background-image: url('../img/actions/logout.svg');
 }
diff --git a/core/img/actions/clock.png b/core/img/actions/clock.png
deleted file mode 100644
index 5023cf4c3f6..00000000000
Binary files a/core/img/actions/clock.png and /dev/null differ
diff --git a/core/img/actions/clock.svg b/core/img/actions/clock.svg
deleted file mode 100644
index 6b938deea82..00000000000
--- a/core/img/actions/clock.svg
+++ /dev/null
@@ -1,21 +0,0 @@
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diff --git a/core/img/actions/lock.png b/core/img/actions/lock.png
deleted file mode 100644
index 2013ebad695..00000000000
Binary files a/core/img/actions/lock.png and /dev/null differ
diff --git a/core/img/actions/lock.svg b/core/img/actions/lock.svg
deleted file mode 100644
index 9ea5015c8a3..00000000000
--- a/core/img/actions/lock.svg
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!DOCTYPE svg  PUBLIC '-//W3C//DTD SVG 1.1//EN'  'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'>
-<svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" height="16px" width="16px" version="1.1" y="0px" x="0px" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 71 100">
-<path d="m65.5 45v-15c0-16.542-13.458-30-30-30s-30 13.458-30 30v15h-5.5v55h71v-55h-5.5zm-52-15c0-12.131 9.869-22 22-22s22 9.869 22 22v15h-44v-15z"/>
-</svg>