This anchored object handling is just there to be bug-compatible with
Word, it's not needed for the case when there is a single shape in the
paragraph.

Change-Id: I5e3dc4ba9a4a6f459ec6217e8974ebc2d7303bcc
Reviewed-on: https://gerrit.libreoffice.org/51922Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>