Revert "Remove brackets around new toctoggle"

This reverts commit 366f80701b.

Change-Id: I96e6cdf7739a21ed3a1d86fb37ee863d867d6dbb

resources/screen-common.less

@@ -461,16 +461,6 @@ ul#filetoc {
 .toctoggle {
 	color: @background3;
 }
-// Remove brackets around the show/hide button of the TOC
-body :not( :checked ) > .toctogglespan:before,
-body :not( :checked ) > .toctogglespan:after {
-	content: '';
-}
-.toctogglelabel {
-	padding-left: 0; // Overwrite label { padding-left: 0.5em; } from forms.less
-	margin-left: 0.5em; // Create new distance to the TOC title without increasing the focus ring
-}
-
 #toc li:last-child {
 	margin-bottom: 0.5em;
 }