Revert "feat: groups autojoin feature 685f3c6aa6"

This reverts commit 0711d65d1b.

templates/groups/details.tpl

@@ -243,14 +243,6 @@
 							</p>
 						</label>
 					</div>
-					<div class="checkbox">
-						<label>
-							<input name="autojoin" type="checkbox"<!-- IF group.autojoin --> checked<!-- ENDIF group.autojoin -->> <strong>[[groups:details.autojoin]]</strong>
-							<p class="help-block">
-								[[groups:details.autojoin_help]]
-							</p>
-						</label>
-					</div>
 
 					<button class="btn btn-link btn-xs pull-right" type="button" data-action="delete">[[groups:details.delete_group]]</button>
 					<button class="btn btn-primary" type="button" data-action="update">[[global:save_changes]]</button>