Revert r280425.

Might have caused

ninja: error: '..\..\third_party\qunit\src', needed by 'remoting\unittests\qunit\src', missing and no known rule to make it

on the windows bots.

BUG=389683

Review URL: https://codereview.chromium.org/341253004

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@280434 0039d316-1c4b-4281-b951-d872f2087c98

ninja

@@ -12,7 +12,7 @@ cat <<-EOF
 No prebuilt ninja binary was found for this system.
 Try building your own binary by doing:
   cd ~
-  git clone https://github.com/martine/ninja.git -b v1.5.0
+  git clone https://github.com/martine/ninja.git -b v1.4.0
   ./ninja/bootstrap.py
 Then add ~/ninja/ to your PATH.
 EOF