gclient: update git-cl whenever git-cl is run and not when gclient is run

gclient

 #!/bin/bash
 # Copyright (c) 2009 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.
 
 # This script will try to sync the bootstrap directories and then defer control.
 
 base_dir=$(dirname "$0")
 
 # Test git and git --version.
@@ skipping 34 matching lines @@
   cd $base_dir
   test_git_svn
   # work around a git-svn --quiet bug
   OUTPUT=`git svn rebase -q -q`
   if [[ ! "$OUTPUT" =~ Current.branch ]]; then
     echo $OUTPUT
   fi
   cd - > /dev/null
 fi
 
-if [ "X$DEPOT_TOOLS_UPDATE" != "X0" -a -e "$base_dir/git-cl-repo/.git" ]
-then
-  test_git
-  (cd "$base_dir/git-cl-repo"; git pull -q)
-fi
-
 # Use the batch file as an entry point if on cygwin.
 if [ "${OSTYPE}" = "cygwin" -a "${TERM}" != "xterm" ]; then
    ${base_dir}/gclient.bat "$@"
    exit
 fi
 
 
 # We're on POSIX (not cygwin). We can now safely look for svn checkout.
 if [ "X$DEPOT_TOOLS_UPDATE" != "X0" -a -e "$base_dir/.svn" ]
 then
   # Update the bootstrap directory to stay up-to-date with the latest
   # depot_tools.
   svn -q up "$base_dir"
 fi
 
 exec python "$base_dir/gclient.py" "$@"