Remove redundant code

ConflictSet.cpp

@@ -1501,7 +1501,6 @@ void addPointWrite(Node *&root, int64_t oldestVersion,
         p != nullptr ? p->entry.rangeVersion : oldestVersion;
   } else {
     n->entry.pointVersion = std::max(n->entry.pointVersion, writeVersion);
-    n->maxVersion = std::max(n->maxVersion, writeVersion);
   }
 }