Remove useless comment decorations

Change-Id: I652932b0a82641d01c6e64a3c8acc5c983cee022
Reviewed-on: https://gerrit.libreoffice.org/7914
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>