to find unneeded explicit defined or default able
copy assignments and copy constructors.
Remove the default destructor if it's not needed.

Change-Id: I8c53a8622a53398889397132ec1f464e996ac49d
Reviewed-on: https://gerrit.libreoffice.org/42525Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>