Revert of [depot_tools] Find, upload and apply patchset dependencies

rietveld.py

Index: rietveld.py
diff --git a/rietveld.py b/rietveld.py
index 68988ab73674a68a5943a606b3a4d4f9cb340339..eddf77eef50a7e85b2e38d7783e30f18b7798e25 100644
--- a/rietveld.py
+++ b/rietveld.py
@@ -83,20 +83,6 @@
     data = json.loads(self.get(url, retry_on_404=True))
     data['description'] = '\n'.join(data['description'].strip().splitlines())
     return data
-
-  def get_depends_on_patchset(self, issue, patchset):
-    """Returns the patchset this patchset depends on if it exists."""
-    url = '/%d/patchset/%d/get_depends_on_patchset' % (issue, patchset)
-    resp = None
-    try:
-      resp = json.loads(self.get(url))
-    except urllib2.HTTPError:
-      # The get_depends_on_patchset endpoint does not exist on this Rietveld
-      # instance yet. Ignore the error and proceed.
-      # TODO(rmistry): Make this an error when all Rietveld instances have
-      # this endpoint.
-      pass
-    return resp
 
   def get_patchset_properties(self, issue, patchset):
     """Returns the patchset properties."""
@@ -691,9 +677,6 @@
   def get_patchset_properties(self, issue, patchset):
     return self._rietveld.get_patchset_properties(issue, patchset)
 
-  def get_depends_on_patchset(self, issue, patchset):
-    return self._rietveld.get_depends_on_patchset(issue, patchset)
-
   def get_patch(self, issue, patchset):
     return self._rietveld.get_patch(issue, patchset)