Staging: hv: remove hv_mouse driver as it's now in the hid directory

This removes the hv_mouse driver as it's now in Jiri's HID tree in the
"proper" place.

Cc: KY Srinivasan <kys@microsoft.com>
Cc: Jiri Kosina <jikos@jikos.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --cc drivers/staging/hv/Kconfig
Simple merge

diff --cc drivers/staging/hv/Makefile
Simple merge

diff --cc drivers/staging/hv/hv_mouse.c
Simple merge