File libcxx-remove-unused-imports.patch of Package llvm17

From 017396310bb6515786eb9d9cf9fb0256de08d65b Mon Sep 17 00:00:00 2001
From: "Stephan T. Lavavej" <stl@nuwen.net>
Date: Tue, 28 Nov 2023 16:33:11 -0800
Subject: [PATCH] Remove unused Python imports.

diff --git a/libcxx/utils/libcxx/test/format.py b/libcxx/utils/libcxx/test/format.py
index 52c6f9cd8f2ef22..5eb17d417489c62 100644
--- a/libcxx-17.0.6.src/utils/libcxx/test/format.py
+++ b/libcxx-17.0.6.src/utils/libcxx/test/format.py
@@ -6,14 +6,10 @@
 #
 # ===----------------------------------------------------------------------===##
 
-import contextlib
-import io
 import lit
 import lit.formats
 import os
-import pipes
 import re
-import shutil
 
 
 def _getTempPaths(test):