Fix landing candidate pushes.

tools/push-to-trunk/common_includes.py

Index: tools/push-to-trunk/common_includes.py
diff --git a/tools/push-to-trunk/common_includes.py b/tools/push-to-trunk/common_includes.py
index 21cdcf49777780a7c71d38fc63dd45d533202ee1..ac78ef8d27da7be143dd9ca483ae6e65cb6ab629 100644
--- a/tools/push-to-trunk/common_includes.py
+++ b/tools/push-to-trunk/common_includes.py
@@ -287,9 +287,6 @@ class VCInterface(object):
   def RemoteBranch(self, name):
     raise NotImplementedError()
 
-  def Land(self):
-    raise NotImplementedError()
-
   def CLLand(self):
     raise NotImplementedError()
 
@@ -356,9 +353,6 @@ class GitInterface(VCInterface):
     self.step.Git("tag %s %s" % (tag, commit))
     self.step.Git("push origin %s" % tag)
 
-  def Land(self):
-    self.step.Git("push origin")
-
   def CLLand(self):
     self.step.GitCLLand()