remove async-channel now that context and eval is global

packages/generational-box/src/lib.rs

@@ -611,19 +611,11 @@ impl Drop for GenerationalRefMutBorrowInfo {
 }
 
 /// Handles recycling generational boxes that have been dropped. Your application should have one store or one store per thread.
-#[derive(Clone)]
+#[derive(Clone, Default)]
 pub struct Store {
     recycled: Rc<RefCell<Vec<MemoryLocation>>>,
 }
 
-impl Default for Store {
-    fn default() -> Self {
-        Self {
-            recycled: Default::default(),
-        }
-    }
-}
-
 impl Store {
     fn recycle(&self, location: MemoryLocation) {
         location.drop();