Update git submodules

* Update docs/submodules/releng from branch 'master'
  to f58b5b06071fdb4a3b141e3d7fe4b98a4d793d25
  - Remove branch if pure daily jobs

    It's simply useless

    Change-Id: I375ebc8ef64b68598beb24e1364c6251d6d98e85
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 34ef912..f58b5b0 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 34ef912994a13a46e295f7646df217da44988363
+Subproject commit f58b5b06071fdb4a3b141e3d7fe4b98a4d793d25