Revert "[Chrome OS] Move dependency on cros.git into main DEPS file"

This reverts commit 23b21c73509d1914310e809071ca9eb21dfe29f2.

TBR=bradnelson@chromium.org

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@66127 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -274,9 +274,6 @@ deps_os = {
 
     "src/third_party/openssl":
       "/trunk/deps/third_party/openssl@65717",
-
-    "src/third_party/cros":
-      Var("chromium_git") + "/cros.git@d4465704",
   },
 }