This reverts the solution in 9fee132c.

Also, calculate center using the new function for chart, image, and text
shape insertion.

Reviewed-on: https://gerrit.libreoffice.org/51343Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: pranavk <pranavk@collabora.co.uk>
(cherry picked from commit 1990fc47)

Change-Id: I3386cf65d28d6537409a9e27e870c195d689ef50
Reviewed-on: https://gerrit.libreoffice.org/51531Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>