Switch release scripts to pure git.

tools/push-to-trunk/bump_up_version.py

Index: tools/push-to-trunk/bump_up_version.py
diff --git a/tools/push-to-trunk/bump_up_version.py b/tools/push-to-trunk/bump_up_version.py
index 4a10b86615ed0ae9282aba7bc0b2cd719879f5d9..647708c0c76324158019273c561f0c461f8eb76b 100755
--- a/tools/push-to-trunk/bump_up_version.py
+++ b/tools/push-to-trunk/bump_up_version.py
@@ -198,13 +198,10 @@ class ChangeVersion(Step):
       msg = "[Auto-roll] Bump up version to %s" % self["new_version"]
       self.GitCommit("%s\n\nTBR=%s" % (msg, self._options.author),
                      author=self._options.author)
-      if self._options.svn:
-        self.SVNCommit("branches/bleeding_edge", msg)
-      else:
-        self.GitUpload(author=self._options.author,
-                       force=self._options.force_upload,
-                       bypass_hooks=True)
-        self.GitDCommit()
+      self.GitUpload(author=self._options.author,
+                     force=self._options.force_upload,
+                     bypass_hooks=True)
+      self.GitCLLand()
       print "Successfully changed the version."
     finally:
       # Clean up.