Revert "Input: Add driver for PixArt PS/2 touchpad"

This reverts commit 740ff03 because
current PixArt detection is too greedy and claims devices that are
not PixArt.

Reported-by: Benjamin Tissoires <bentiss@kernel.org>
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2314756
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/mouse/Kconfig

@@ -69,18 +69,6 @@ config MOUSE_PS2_LOGIPS2PP
 
 	  If unsure, say Y.
 
-config MOUSE_PS2_PIXART
-	bool "PixArt PS/2 touchpad protocol extension" if EXPERT
-	default y
-	depends on MOUSE_PS2
-	help
-	  This driver supports the PixArt PS/2 touchpad found in some
-	  laptops.
-	  Say Y here if you have a PixArt PS/2 TouchPad connected to
-	  your system.
-
-	  If unsure, say Y.
-
 config MOUSE_PS2_SYNAPTICS
 	bool "Synaptics PS/2 mouse protocol extension" if EXPERT
 	default y

drivers/input/mouse/Makefile

@@ -32,7 +32,6 @@ psmouse-$(CONFIG_MOUSE_PS2_ELANTECH)	+= elantech.o
 psmouse-$(CONFIG_MOUSE_PS2_OLPC)	+= hgpk.o
 psmouse-$(CONFIG_MOUSE_PS2_LOGIPS2PP)	+= logips2pp.o
 psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK)	+= lifebook.o
-psmouse-$(CONFIG_MOUSE_PS2_PIXART)	+= pixart_ps2.o
 psmouse-$(CONFIG_MOUSE_PS2_SENTELIC)	+= sentelic.o
 psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT)	+= trackpoint.o
 psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT)	+= touchkit_ps2.o