[PATCH 1/2] Revert "HID: multitouch: enable palm rejection if device implements confidence usage"

[Allen Hung]

This reverts commit 25a84db15b3f ("HID: multitouch: enable palm rejection
if device implements confidence usage")

The commit enables palm rejection for Win8 Precision Touchpad devices but
the quirk MT_QUIRK_VALID_IS_CONFIDENCE it is using is not working very
properly. This quirk is originally designed for some WIn7 touchscreens. Use
of this for a Win8 Precision Touchpad will cause unexpected pointer jumping
problem.

Signed-off-by: Allen Hung <allen_h...@dell.com>
---
 drivers/hid/hid-multitouch.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 95b7d61..4ef7006 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -502,11 +502,6 @@ static int mt_touch_input_mapping(struct hid_device *hdev, 
struct hid_input *hi,
                        mt_store_field(usage, td, hi);
                        return 1;
                case HID_DG_CONFIDENCE:
-                       if (cls->name == MT_CLS_WIN_8 &&
-                               field->application == HID_DG_TOUCHPAD) {
-                               cls->quirks &= ~MT_QUIRK_ALWAYS_VALID;
-                               cls->quirks |= MT_QUIRK_VALID_IS_CONFIDENCE;
-                       }
                        mt_store_field(usage, td, hi);
                        return 1;
                case HID_DG_TIPSWITCH:
-- 
2.7.4