and remove some noise comments

Change-Id: I290ec365b58fa1b21838a6faf84006434c3e7bbd
Reviewed-on: https://gerrit.libreoffice.org/19904Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>