Remove xsetpointer. Peter Hutterer writes on xorg-devel:

xsetpointer sets an input device as the core pointer. This dates
back to when an extension device could not be a core device at the
same time and is obsolete since server 1.4 (2006 or so I think).
the request always fails now (96e32805d12fc36f0fa0926dbfb0dd8a5cadb739).
xinput set-pointer is the equiv xsetpointer, but still doesn't do
anything, that app is truly dead.

(wiz)