bpo-40443: Remove unused imports in distutils (GH-19802)

diff --git a/Lib/distutils/ccompiler.py b/Lib/distutils/ccompiler.py
index 4cfc6c7..b5ef143 100644
--- a/Lib/distutils/ccompiler.py
+++ b/Lib/distutils/ccompiler.py
@@ -8,7 +8,7 @@
 from distutils.spawn import spawn
 from distutils.file_util import move_file
 from distutils.dir_util import mkpath
-from distutils.dep_util import newer_pairwise, newer_group
+from distutils.dep_util import newer_group
 from distutils.util import split_quoted, execute
 from distutils import log