all: remove control center in its entirety

src/utils/object_drop_queue.rs

@@ -11,6 +11,7 @@ use {
 };
 
 pub struct ObjectDropQueue<T> {
+    #[allow(dead_code)]
     ring: Rc<IoUring>,
     killed: Cell<bool>,
     pending: RefCell<Vec<Option<(T, PendingPoll)>>>,
@@ -32,6 +33,7 @@ impl<T> ObjectDropQueue<T> {
         }
     }
 
+    #[allow(dead_code)]
     pub fn push(self: &Rc<Self>, fd: &Rc<OwnedFd>, t: T)
     where
         T: 'static,