diff --git a/curriculum/challenges/_meta/data-structures/meta.json b/curriculum/challenges/_meta/data-structures/meta.json
index bfd7cbbd69c..4ccfc387b71 100644
--- a/curriculum/challenges/_meta/data-structures/meta.json
+++ b/curriculum/challenges/_meta/data-structures/meta.json
@@ -37,14 +37,6 @@
       "id": "8d1323c8c441eddfaeb5bdef",
       "title": "Create a Set Class"
     },
-    {
-      "id": "587d8253367417b2b2512c6b",
-      "title": "Remove from a Set"
-    },
-    {
-      "id": "8d1923c8c441eddfaeb5bdef",
-      "title": "Size of the Set"
-    },
     {
       "id": "587d8253367417b2b2512c6c",
       "title": "Perform a Union on Two Sets"