Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to be1067b70c76b71c213a5ebbde52d6f7f74abc2d
  - Remove unused imports in vcpe python scripts

    Unused imports are removed according to pylint report
    or ignore rules are added where applicable.

    Change-Id: I8c32b5c3f456f0444f8ec8980910d470b7238a7d
    Issue-ID: INT-1427
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index 3bb78c3..be1067b 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit 3bb78c3ee86a5d555d78135fde6b9bab3753a95e
+Subproject commit be1067b70c76b71c213a5ebbde52d6f7f74abc2d