Revert "Try Clazy fix-its"

Segfault on old Qt versions!
This reverts commit dba7caed30.

sources/editor/ui/rectangleeditor.cpp

@@ -59,8 +59,7 @@ void RectangleEditor::setUpChangeConnections()
 
 void RectangleEditor::disconnectChangeConnections()
 {
-	for (const QMetaObject::Connection& c : std::as_const(m_change_connections))
-	{
+	for (QMetaObject::Connection c : m_change_connections) {
 		disconnect(c);
 	}
 	m_change_connections.clear();