Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Delete unnecessary material"
  - Delete unnecessary material

    Change-Id: I446495d2ec5641b5478ce59192525df332b4f498
    Signed-off-by: Taseer Ahmed <taseer94@gmail.com>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 4c31d97..d6974b1 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 4c31d9710147a089de6573ce412bf44a7ba1d1dd
+Subproject commit d6974b109f00b5ff7ef76cf23d63d4227522b6fe