diff --git a/dev/tools/bin/engine_hash.sh b/dev/tools/bin/engine_hash.sh
deleted file mode 100755
index 348ad39c673..00000000000
--- a/dev/tools/bin/engine_hash.sh
+++ /dev/null
@@ -1,69 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2014 The Flutter Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# ---------------------------------- NOTE ---------------------------------- #
-#
-# This file will appear unused within the monorepo. It is used internally
-# (in google3) as part of the roll process, and care should be put before
-# making changes.
-#
-# See cl/688973229.
-#
-# -------------------------------------------------------------------------- #
-
-# Needed because if it is set, cd may print the path it changed to.
-unset CDPATH
-
-# On Mac OS, readlink -f doesn't work, so follow_links traverses the path one
-# link at a time, and then cds into the link destination and find out where it
-# ends up.
-#
-# The returned filesystem path must be a format usable by Dart's URI parser,
-# since the Dart command line tool treats its argument as a file URI, not a
-# filename. For instance, multiple consecutive slashes should be reduced to a
-# single slash, since double-slashes indicate a URI "authority", and these are
-# supposed to be filenames. There is an edge case where this will return
-# multiple slashes: when the input resolves to the root directory. However, if
-# that were the case, we wouldn't be running this shell, so we don't do anything
-# about it.
-#
-# The function is enclosed in a subshell to avoid changing the working directory
-# of the caller.
-function follow_links() (
-  cd -P "$(dirname -- "$1")"
-  file="$PWD/$(basename -- "$1")"
-  while [[ -h "$file" ]]; do
-    cd -P "$(dirname -- "$file")"
-    file="$(readlink -- "$file")"
-    cd -P "$(dirname -- "$file")"
-    file="$PWD/$(basename -- "$file")"
-  done
-  echo "$file"
-)
-
-PROG_NAME="$(follow_links "${BASH_SOURCE[0]}")"
-BIN_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
-FLUTTER_ROOT="$(cd "${BIN_DIR}/../../.." ; pwd -P)"
-
-# Allow using a mock git for testing.
-if [ -z "$GIT" ]; then
-    # By default, use git on PATH.
-    GIT_BIN="git"
-else
-    # Use the provide GIT executable.
-    GIT_BIN="$GIT"
-fi
-
-# Test for fusion repository
-if [ -f "$FLUTTER_ROOT/DEPS" ]; then
-    ENGINE_VERSION=$($GIT_BIN -C "$FLUTTER_ROOT" merge-base HEAD origin/master)
-elif [ -f "$FLUTTER_ROOT/bin/internal/engine.version" ]; then
-    ENGINE_VERSION=$(cat "$FLUTTER_ROOT/bin/internal/engine.version")
-else
-    >&2 echo "Not a valid FLUTTER_ROOT: $FLUTTER_ROOT"
-    exit 1
-fi
-
-echo $ENGINE_VERSION
diff --git a/dev/tools/test/engine_hash_test.dart b/dev/tools/test/engine_hash_test.dart
deleted file mode 100644
index aa48f4d6c89..00000000000
--- a/dev/tools/test/engine_hash_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-@TestOn('posix')
-library;
-
-import 'dart:io' as io;
-
-import 'package:path/path.dart' as p;
-import 'package:test/test.dart';
-
-/// Tests that `/dev/tools/bin/engine_hash.sh` _appears_ to work.
-void main() {
-  late final io.File engineHashSh;
-
-  setUpAll(() {
-    engineHashSh = io.File(p.join(p.current, 'bin', 'engine_hash.sh'));
-    if (!engineHashSh.existsSync()) {
-      fail('No engine_hash.sh at "${p.absolute(engineHashSh.path)}".');
-    }
-  });
-
-  late io.Directory tmpFlutterRoot;
-
-  setUp(() {
-    tmpFlutterRoot = io.Directory.systemTemp.createTempSync('engine_hash_test.');
-
-    // Create engine_hash.sh at the same component it would be in the real root.
-    io.Directory(p.join(tmpFlutterRoot.path, 'dev', 'tools', 'bin')).createSync(recursive: true);
-    engineHashSh.copySync(p.join(tmpFlutterRoot.path, 'dev', 'tools', 'bin', 'engine_hash.sh'));
-
-    // Create FLUTTER_ROOT/DEPS.
-    io.File(p.join(tmpFlutterRoot.path, 'DEPS')).createSync();
-  });
-
-  tearDown(() {
-    tmpFlutterRoot.deleteSync(recursive: true);
-  });
-
-  test('omission of FLUTTER_ROOT/DEPS falls back to engine.version', () {
-    io.File(p.join(tmpFlutterRoot.path, 'bin', 'internal', 'engine.version'))
-      ..createSync(recursive: true)
-      ..writeAsStringSync('12345');
-    io.File(p.join(tmpFlutterRoot.path, 'DEPS')).deleteSync();
-
-    final io.ProcessResult result = io.Process.runSync(
-      p.join(tmpFlutterRoot.path, 'dev', 'tools', 'bin', 'engine_hash.sh'),
-      <String>[],
-    );
-    expect(result.exitCode, 0, reason: result.stderr.toString());
-    expect(result.stdout, '12345\n');
-  });
-
-  test('uses git -C merge-base HEAD origin/master', () {
-    final io.ProcessResult result = io.Process.runSync(
-      p.join(tmpFlutterRoot.path, 'dev', 'tools', 'bin', 'engine_hash.sh'),
-      <String>[],
-      environment: <String, String>{'GIT': p.join(p.current, 'test', 'mock_git.sh')},
-    );
-    expect(result.exitCode, 0, reason: result.stderr.toString());
-    expect(
-      result.stdout,
-      stringContainsInOrder(<String>[
-        'Mock Git: -C',
-        'engine_hash_test',
-        // This needs to be origin/master if the google3 script is running from a fresh checkout.
-        'merge-base HEAD origin/master',
-      ]),
-    );
-  });
-}