Change google3 sync scripts to sync latest rather than LKGR.

tools/get_skia_lkgr.sh

Index: tools/get_skia_lkgr.sh
diff --git a/tools/get_skia_lkgr.sh b/tools/get_skia_lkgr.sh
deleted file mode 100755
index 2fc75b7e1e96cb0593bc4c2e5c2ea9ed40957daa..0000000000000000000000000000000000000000
--- a/tools/get_skia_lkgr.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/bash
-# Copyright 2014 Google Inc.
-#
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Outputs the Last Known Good Revision of Skia.
-
-prodcertstatus -q || (echo "Please run prodaccess." 1>&2; exit 1)
-source gbash.sh || exit 2
-
-set -e
-
-# Retrieve last known good revision. (App-engine script is very flaky, so retry
-# 10 times.)
-LKGR=""
-for i in `seq 1 10`; do
-  LKGR=$(curl "http://skia-tree-status-staging.appspot.com/lkgr")
-  if [[ ${#LKGR} -gt 4 ]]; then
-    break
-  fi
-done
-[[ ${#LKGR} -gt 4 ]] || gbash::die "Unable to get Skia LKGR (got '${LKGR}')"
-echo "${LKGR}"