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

diff --git a/Lib/distutils/msvc9compiler.py b/Lib/distutils/msvc9compiler.py
index 4c0036a..6934e96 100644
--- a/Lib/distutils/msvc9compiler.py
+++ b/Lib/distutils/msvc9compiler.py
@@ -19,8 +19,7 @@
 
 from distutils.errors import DistutilsExecError, DistutilsPlatformError, \
                              CompileError, LibError, LinkError
-from distutils.ccompiler import CCompiler, gen_preprocess_options, \
-                                gen_lib_options
+from distutils.ccompiler import CCompiler, gen_lib_options
 from distutils import log
 from distutils.util import get_platform