diff --git a/phpBB/styles/prosilver/theme/buttons.css b/phpBB/styles/prosilver/theme/buttons.css
index 10e4eca738..26efa6ad0a 100644
--- a/phpBB/styles/prosilver/theme/buttons.css
+++ b/phpBB/styles/prosilver/theme/buttons.css
@@ -173,40 +173,3 @@ button::-moz-focus-inner {
 	border: 0;
 	padding: 0;
 }
-
-/* Deprecated as of version 3.2
-------------------------------------------------- */
-.small-icon {
-	background-image: none;
-	background-repeat: no-repeat;
-	background-position: 0 50%;
-}
-
-.dropdown .small-icon {
-	background-position: 5px 50%;
-	padding: 5px;
-}
-
-.small-icon > a {
-	padding: 0 0 0 18px;
-}
-
-
-/* stylelint-disable selector-no-qualifying-type */
-ul.linklist.bulletin > li.small-icon:before {
-	display: none;
-}
-/* stylelint-enable selector-no-qualifying-type */
-
-.dropdown .small-icon > a {
-	display: block;
-}
-
-.rtl .small-icon {
-	background-position: 100% 50%;
-}
-
-.rtl .small-icon > a {
-	padding-right: 19px;
-	padding-left: 0;
-}