Remove duplicate code

ConflictSet.cpp

@@ -485,21 +485,6 @@ Node *nextPhysical(Node *node) {
   }
 }
 
-Node *nextPhysicalSkipSubtree(Node *node) {
-  int index = -1;
-  for (;;) {
-    index = node->parentsIndex;
-    node = node->parent;
-    if (node == nullptr) {
-      return nullptr;
-    }
-    auto nextChild = getChildGeq(node, index + 1);
-    if (nextChild >= 0) {
-      return getChildExists(node, nextChild);
-    }
-  }
-}
-
 Node *nextLogical(Node *node) {
   for (node = nextPhysical(node); node != nullptr && !node->entryPresent;
        node = nextPhysical(node))
@@ -792,7 +777,8 @@ bool checkRangeRead(Node *n, const std::span<const uint8_t> begin,
       if (iter->maxVersion > readVersion) {
         return false;
       }
-      iter = nextPhysicalSkipSubtree(iter);
+      // Skip subtree
+      iter = nextSibling(iter);
     } else {
       if (onRightPath && iter->maxVersion <= readVersion) {
         return true;