Update git submodules

* Update helpcontent2 from branch 'libreoffice-6-4'
  - Remove link to old help contents
    
    Change-Id: I71e5b7e0eae41e90075e907585abf00de47e4299
    Reviewed-on: https://gerrit.libreoffice.org/83199
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    (cherry picked from commit ccdc4ebe207ab439f424a64887ba3f3d0f87e9d8)
    Reviewed-on: https://gerrit.libreoffice.org/83452
    

1 files changed, 0 insertions, 0 deletions

diff --git a/helpcontent2 b/helpcontent2
-Subproject dddd28a6173bf590d8b4ea8ca886c0a732e5055
+Subproject ee1b8e6f16ccfd115b976aca536bb3a108ae453