Problem: double parsing is slow

Solution: remove it now that it seems to be correct

src/zc/buildout/patches.py

@@ -126,7 +126,6 @@ def patch_PackageIndex():
             except TypeError:
                 plinks = parse_links(html_page)
             plinks = list(plinks)
-            pip_links = [l.url for l in plinks]
 
             # --- END OF LOCAL CHANGES ---
 
@@ -137,14 +136,6 @@ def patch_PackageIndex():
 
             # --- LOCAL CHANGES MADE HERE: ---
 
-            links = []
-            for match in HREF.finditer(page):
-                link = urllib.parse.urljoin(base, htmldecode(match.group(1)))
-                links.append(_clean_link(link))
-
-            # TODO: remove assertion and double index page parsing before releasing.
-            assert set(pip_links) == set(links)
-
             for link in plinks:
                 if _check_link_requires_python(link, PY_VERSION_INFO):
                     self.process_url(link.url)