--- install.py.orig	2020-03-25 12:26:08.000000000 -0400
+++ install.py	2020-04-01 07:49:00.000000000 -0400
@@ -187,17 +187,6 @@
 def build_project(project, extra_args):
     proj_dir = os.path.join(TOPDIR, project)
 
-    # First ask distutils to clean up
-    print("Cleaning {!r} using {!r}".format(project, sys.executable))
-    status = subprocess.call([sys.executable, "setup.py", "clean"], cwd=proj_dir)
-    if status != 0:
-        print("Cleaning of {!r} failed, status {}".format(project, status))
-        return False
-
-    # Explicitly remove the 'build' directory, just in case...
-    if os.path.exists(os.path.join(proj_dir, "build")):
-        shutil.rmtree(os.path.join(proj_dir, "build"))
-
     print("Installing {!r} using {!r}".format(project, sys.executable))
     status = subprocess.call(
         [sys.executable, "setup.py", "install"] + extra_args, cwd=proj_dir
