Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to 710011b4fb147bf100c52c4b0425160bba88a0fd
  - Remove unused vars and methods

    Removed unused variables and unused methods.
    Removed empty ';' statements.
    Combined if's that had no content.

    Not doing any formatting for javascript right now.

    Licenses.

    Issue-ID: POLICY-2134
    Change-Id: Ib5ec178bd34154281509f57ed15f704e26101f05
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

diff --git a/docs/submodules/policy/engine.git b/docs/submodules/policy/engine.git
index ffd7241..710011b 160000 (submodule)
--- a/docs/submodules/policy/engine.git
+++ b/docs/submodules/policy/engine.git
@@ -1 +1 @@
-Subproject commit ffd7241c7bfa8d8b68b504406fc6ed4cc299ffe6
+Subproject commit 710011b4fb147bf100c52c4b0425160bba88a0fd