diff --git a/js/fiber.ts b/js/fiber.ts
index fbd003f..5d929f7 100644
--- a/js/fiber.ts
+++ b/js/fiber.ts
@@ -275,68 +275,6 @@ function buildLookupForRemaining(parentFiber, firstNewChild, prevChild, fromOldF
   return firstNewChild;
 }
 
-function _reconcileArray(parentFiber, elements) {
-  assert(parentFiber.effect !== Delete);
-  const oldFiberLookup = buildLookup(parentFiber.child);
-
-  let firstNewChild = null;
-  let prevChild;
-  let lastKeptIndex = 0;
-  for (let i = 0; i < elements.length; i++) {
-    const el = elements[i];
-    const key = el.key ?? i;
-    const oldFiber = oldFiberLookup.get(key) ?? null;
-    const newFiber = updateFiber(oldFiber, el);
-    // TODO: handle newFiber === null (if element was false/null)
-
-    newFiber.parent = parentFiber;
-    newFiber.index = i;
-    newFiber.key = el.key;
-
-    if (newFiber.alternate) {
-      // We are continuing with an existing fiber, remove oldFiber
-      // from lookup so it doesn't get unmounted
-      oldFiberLookup.delete(key);
-
-      const oldIndex = oldFiber.index;
-      if (oldIndex < lastKeptIndex) {
-        newFiber.effect = Placement;
-      }
-      else {
-        lastKeptIndex = i;
-      }
-    }
-    else {
-      newFiber.effect = Placement;
-    }
-
-    if (prevChild) prevChild.sibling = newFiber;
-    else firstNewChild = newFiber;
-    prevChild = newFiber;
-  }
-  // Remove any existing sibling pointer from the last child
-  // TODO: maybe this should be done by cloneFiber,
-  // it doesn't seem right to have to worry about it here
-  // (and it has already caused a bug)
-  if (prevChild) prevChild.sibling = null;
-
-  // Should be guaranteed by `cloneFiber` and `makeFiber`
-  assert(parentFiber.deletedChildren === null);
-  // Only allocate deletedChildren array if we actually have some
-  if (oldFiberLookup.size > 0) {
-    parentFiber.deletedChildren = [];
-
-    // Any fibers remaining in `oldFiberLookup` did not have a
-    // matching element, so they need to be deleted
-    oldFiberLookup.forEach(deadFiber => {
-      deadFiber.effect = Delete;
-      parentFiber.deletedChildren.push(deadFiber);
-    });
-  }
-
-  return firstNewChild;
-}
-
 function updateFiber(oldFiber, element) {
   // If `element` is false/null, we ignore it and render nothing, e.g.:
   //