1 files changed, 0 insertions, 60 deletions
diff --git a/src/mongo/db/pipeline/monotonic_expression.cpp b/src/mongo/db/pipeline/monotonic_expression.cpp
deleted file mode 100644
index bc34b756fec..00000000000
--- a/src/mongo/db/pipeline/monotonic_expression.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-/**
- *    Copyright (C) 2022-present MongoDB, Inc.
- *
- *    This program is free software: you can redistribute it and/or modify
- *    it under the terms of the Server Side Public License, version 1,
- *    as published by MongoDB, Inc.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    Server Side Public License for more details.
- *
- *    You should have received a copy of the Server Side Public License
- *    along with this program. If not, see
- *    <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- *    As a special exception, the copyright holders give permission to link the
- *    code of portions of this program with the OpenSSL library under certain
- *    conditions as described in each individual source file and distribute
- *    linked combinations including the program with the OpenSSL library. You
- *    must comply with the Server Side Public License in all respects for
- *    all of the code used other than as permitted herein. If you modify file(s)
- *    with this exception, you may extend this exception to your version of the
- *    file(s), but you are not obligated to do so. If you do not wish to do so,
- *    delete this exception statement from your version. If you delete this
- *    exception statement from all source files in the program, then also delete
- *    it in the license file.
- */
-
-#include "mongo/db/pipeline/monotonic_expression.h"
-
-namespace mongo::monotonic {
-
-State opposite(State state) {
-    switch (state) {
-        case State::NonMonotonic:
-        case State::Constant:
-            return state;
-        case State::Increasing:
-            return State::Decreasing;
-        case State::Decreasing:
-            return State::Increasing;
-    };
-    MONGO_UNREACHABLE;
-}
-
-State combine(State lhs, State rhs) {
-    if (lhs == State::NonMonotonic || rhs == State::NonMonotonic) {
-        return State::NonMonotonic;
-    }
-    if (lhs == rhs || lhs == State::Constant) {
-        return rhs;
-    }
-    if (rhs == State::Constant) {
-        return lhs;
-    }
-    return State::NonMonotonic;
-}
-
-}  // namespace mongo::monotonic