Revert "HID: logitech-hidpp: add a module parameter to keep firmware gestures"

Revert "HID: logitech-hidpp: add a module parameter to keep firmware gestures"

Now that we're in 2022, and the majority of desktop environments can and
should support touchpad gestures through libinput, remove the legacy
module parameter that made it possible to use gestures implemented in
firmware.

This will eventually allow simplifying the driver's initialisation code.

This reverts commit 9188dbaed68a4b23dc96eba165265c08caa7dc2a.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20221220154345.474596-1-hadess@hadess.net