diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c
index 7120e4d..00198ff 100644
--- a/Modules/_collectionsmodule.c
+++ b/Modules/_collectionsmodule.c
@@ -117,23 +117,9 @@
 #define CHECK_NOT_END(link)
 #endif
 
-/* A simple freelisting scheme is used to minimize calls to the memory
-   allocator.  It accommodates common use cases where new blocks are being
-   added at about the same rate as old blocks are being freed.
- */
-
-#define MAXFREEBLOCKS 16
-static Py_ssize_t numfreeblocks = 0;
-static block *freeblocks[MAXFREEBLOCKS];
-
 static block *
 newblock(void) {
-    block *b;
-    if (numfreeblocks) {
-        numfreeblocks--;
-        return freeblocks[numfreeblocks];
-    }
-    b = PyMem_Malloc(sizeof(block));
+    block *b = PyMem_Malloc(sizeof(block));
     if (b != NULL) {
         return b;
     }
@@ -144,12 +130,7 @@
 static void
 freeblock(block *b)
 {
-    if (numfreeblocks < MAXFREEBLOCKS) {
-        freeblocks[numfreeblocks] = b;
-        numfreeblocks++;
-    } else {
-        PyMem_Free(b);
-    }
+    PyMem_Free(b);
 }
 
 static PyObject *