diff -u b/core/modules/user/css/user.theme.css b/core/modules/user/css/user.theme.css
--- b/core/modules/user/css/user.theme.css
+++ b/core/modules/user/css/user.theme.css
@@ -57,9 +56,0 @@
-
-/* Toolbar tab icon. */
-.toolbar-bar .toolbar-icon-user:before {
-  background-image: url(../../../misc/icons/bebebe/person.svg);
-}
-.toolbar-bar .toolbar-icon-user:active:before,
-.toolbar-bar .toolbar-icon-user.active:before {
-  background-image: url(../../../misc/icons/ffffff/person.svg);
-}