This results in a noticeable delay when using wxGTK via a remote X11
connection for every key event as a round trip to server is needed to get the
mouse pointer position every time a key is pressed or released.
Only provide the position on demand. And explain that it's actually not very
useful as it's simply the same as the current mouse position.
Closes#14361.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72207 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2f7baaeccf