Remove SVN (and dcommit) support from git-cl

tests/upload-local-tracking-branch.sh

 #!/usr/bin/env bash
 
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 set -e
 
 . ./test-lib.sh
 
-setup_initgit
-setup_gitgit
+setup_git_remote
+setup_git_checkout
 
 (
   set -e
-  cd git-git
+  cd git_checkout
   git checkout -q -b work HEAD^
   git checkout -q -t -b work2 work
   echo "some work done on a branch that tracks a local branch" >> test
   git add test; git commit -q -m "local tracking branch work"
 
   git config rietveld.server localhost:10000
 
   # Prevent the editor from coming up when you upload.
   export GIT_EDITOR=$(which true)
   test_expect_success "upload succeeds (needs a server running on localhost)" \
     "$GIT_CL upload --no-oauth2 -m test | grep -q 'Issue created'"
 )
 SUCCESS=$?
 
 cleanup
 
 if [ $SUCCESS == 0 ]; then
   echo PASS
 fi