Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 745c624081e15d018e221272c5be661d42bff8eb
  - Merge "remove duplicated and not used code"
  - remove duplicated and not used code
    
    Issue-ID: SO-2634
    Signed-off-by: Lukasz Muszkieta <lukasz.muszkieta@nokia.com>
    Change-Id: Ie4a8fc2a52b3aae5fd40f75cc1bc33dbc385bae8
    
1 file changed