Updated git submodules

Project: aai/data-router master b20f57f64d421d35c065abdbdae7695fa85436ce

Remove top level docs folder

Documentation being aggregated in aai/common

Change-Id: I4e629f86f0483a0d1a55a80663f0a84305ce904c
Issue-ID: DOC-141
Signed-off-by: Rich Bennett <rb2745@att.com>

diff --git a/docs/submodules/aai/data-router.git b/docs/submodules/aai/data-router.git
index 7af0056..b20f57f 160000 (submodule)
--- a/docs/submodules/aai/data-router.git
+++ b/docs/submodules/aai/data-router.git
@@ -1 +1 @@
-Subproject commit 7af00564f04e1b8f441536fce5bdf31d59fe722c
+Subproject commit b20f57f64d421d35c065abdbdae7695fa85436ce