Remove more icons

Signed-off-by: Joas Schilling <coding@schilljs.com>

css/icons.scss

@@ -1,6 +1,3 @@
-@include icon-black-white('no-password', 'spreed', 1);
-@include icon-black-white('folder-multiple-image', 'spreed', 1);
-
 // Mention bubbles in the chat input and messages
 .avatar-class-icon.icon-group-forced-white {
 	background-image: url(../img/icon-contacts-white.svg);