dev: Remove unused copyright2024.txt file

BUG=none
TEST=cq

Change-Id: I33c24d1160e80c55e98e2ed46c0cd9749afbdf10
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/6261413
Tested-by: Jae Hoon Kim <kimjae@chromium.org>
Auto-Submit: Jae Hoon Kim <kimjae@chromium.org>
Reviewed-by: Derek Beckett <dbeckett@chromium.org>
Commit-Queue: Derek Beckett <dbeckett@chromium.org>

src/go.chromium.org/chromiumos/test/provision/v2/copyright2024.txt

diff --git a/src/go.chromium.org/chromiumos/test/provision/v2/copyright2024.txt b/src/go.chromium.org/chromiumos/test/provision/v2/copyright2024.txt
deleted file mode 100644
index 8d9da01..0000000
--- a/src/go.chromium.org/chromiumos/test/provision/v2/copyright2024.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Copyright 2024 The ChromiumOS Authors
-Use of this source code is governed by a BSD-style license that can be
-found in the LICENSE file.