Do not adjust row height if screenUpdating false, because it consumes
significant time.

Also change IsAdjustHeightEnabled boolean to a counter so it can be used
several times in an overlapping manner too.

Change-Id: Ie5c894481f3c1b4e07175164aac8303e504779ce
Reviewed-on: https://gerrit.libreoffice.org/40443Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tamás Bunth <btomi96@gmail.com>