list/sort: remove the forwarding comparison operator

list/sort.hpp

@@ -14,15 +14,11 @@
 #include <utility>
 
 namespace cruft::list {
+    /// A simple tuple-style linked list node.
     template <typename ValueT>
     struct node {
         node *next;
         ValueT data;
-
-        bool operator< (node const &rhs) const
-        {
-            return data < rhs.data;
-        }
     };
 
 
@@ -61,7 +57,7 @@ namespace cruft::list {
             return first;
 
         auto extract = [&] () {
-            auto &target = *first < *middle ? first : middle;
+            auto &target = first->data < middle->data ? first : middle;
             auto res = target;
             target = target->next;
             return res;
@@ -113,7 +109,7 @@ namespace cruft::list {
         auto b = head->next;
 
         while (b) {
-            if (*b < *a)
+            if (b->data < a->data)
                 return false;
 
             a = a->next;