Build CPython 2.x with crap in /usr/local/

cpython-2.x-no-usr-local.md

diff --git a/setup.py b/setup.py
index 33cecc6875..52265a58fc 100644
--- a/setup.py
+++ b/setup.py
@@ -454,10 +454,6 @@ class PyBuildExt(build_ext):
             os.unlink(tmpfile)
 
     def detect_modules(self):
-        # Ensure that /usr/local is always used
-        if not cross_compiling:
-            add_dir_to_list(self.compiler.library_dirs, '/usr/local/lib')
-            add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')
         if cross_compiling:
             self.add_gcc_paths()
         self.add_multiarch_paths()