setup: remove HGPYENTRYPOINT environment variables

Summary: Those HGPYENTRYPOINT environment variables are no longer used after D15894694.

Reviewed By: sfilipco

Differential Revision: D18097869

fbshipit-source-id: faa4c28a6a4f2726dd20f3a4b2d6b6a9b072bb5d

setup.py

@@ -1944,11 +1944,6 @@ if sys.platform == "darwin" and os.path.exists("/usr/bin/xcodebuild"):
         if cflags and re.search(r"-mno-fused-madd\b", cflags) is not None:
             os.environ["CFLAGS"] = os.environ.get("CFLAGS", "") + " -Qunused-arguments"
 
-if sys.platform == "darwin" and havefb:
-    # In Facebook, we want hg.rust to use out custom Python installation
-    os.environ[
-        "HGPYENTRYPOINTSEARCHPATH"
-    ] = "/opt/facebook/hg/lib/python2.7/site-packages"
 
 import distutils.command.build_clib
 from distutils.dep_util import newer_group

tests/run-tests.py

@@ -3675,14 +3675,6 @@ class TestRunner(object):
         if getattr(os, "symlink", None):
             tmphgpath = os.path.join(self._tmpbindir, "hg")
             vlog("# Symlink %s to %s" % (self._hgcommand, tmphgpath))
-            entrypointpath = os.path.join(
-                os.path.dirname(os.path.realpath(self._hgcommand)),
-                "mercurial",
-                "entrypoint.py",
-            )
-            if os.path.exists(entrypointpath):
-                vlog("# HGPYENTRYPOINT=%s" % entrypointpath)
-                os.environ["HGPYENTRYPOINT"] = entrypointpath
 
             try:
                 os.symlink(self._hgcommand, tmphgpath)