diff --git a/src/Processors/QueryPlan/ReadFromMergeTree.cpp b/src/Processors/QueryPlan/ReadFromMergeTree.cpp
index 06fae1e810d..b2d8aa0e218 100644
--- a/src/Processors/QueryPlan/ReadFromMergeTree.cpp
+++ b/src/Processors/QueryPlan/ReadFromMergeTree.cpp
@@ -849,9 +849,7 @@ Pipe ReadFromMergeTree::spreadMarkRangesAmongStreams(RangesInDataParts && parts_
 
 static ActionsDAGPtr createProjection(const Block & header)
 {
-    auto projection = std::make_shared<ActionsDAG>(header.getNamesAndTypesList());
-    // projection->removeUnusedActions(header.getNames());
-    return projection;
+    return std::make_shared<ActionsDAG>(header.getNamesAndTypesList());
 }
 
 Pipe ReadFromMergeTree::spreadMarkRangesAmongStreamsWithOrder(