Cleanup touchpad_typing_palm_rejection flag

Flag is in nextfood so we can remove it.

Bug: 301055381
Test: atest --host inputflinger_tests
Flag: EXEMPT removing enable_touchpad_typing_palm_rejection
Change-Id: I70afd61eb5f38719c928c002cc24ed99218ce6b5

Author: Arpit Singh

libs/input/input_flags.aconfig

@@ -60,13 +60,6 @@ flag {
   bug: "299977100"
 }
 
-flag {
-  name: "enable_touchpad_typing_palm_rejection"
-  namespace: "input"
-  description: "Enabling additional touchpad palm rejection will disable the tap to click while the user is typing on a physical keyboard"
-  bug: "301055381"
-}
-
 flag {
   name: "enable_v2_touchpad_typing_palm_rejection"
   namespace: "input"

services/inputflinger/reader/mapper/gestures/GestureConverter.cpp

@@ -39,9 +39,6 @@ namespace android {
 
 namespace {
 
-// This will disable the tap to click while the user is typing on a physical keyboard
-const bool ENABLE_TOUCHPAD_PALM_REJECTION = input_flags::enable_touchpad_typing_palm_rejection();
-
 // In addition to v1, v2 will also cancel ongoing move gestures while typing and add delay in
 // re-enabling the tap to click.
 const bool ENABLE_TOUCHPAD_PALM_REJECTION_V2 =
@@ -226,8 +223,7 @@ std::list<NotifyArgs> GestureConverter::handleMove(nsecs_t when, nsecs_t readTim
     if (!mIsHoverCancelled) {
         // handleFling calls hoverMove with zero delta on FLING_TAP_DOWN. Don't enable tap to click
         // for this case as subsequent handleButtonsChange may choose to ignore this tap.
-        if ((ENABLE_TOUCHPAD_PALM_REJECTION || ENABLE_TOUCHPAD_PALM_REJECTION_V2) &&
-            (std::abs(deltaX) > 0 || std::abs(deltaY) > 0)) {
+        if (std::abs(deltaX) > 0 || std::abs(deltaY) > 0) {
             enableTapToClick(when);
         }
     }
@@ -278,7 +274,7 @@ std::list<NotifyArgs> GestureConverter::handleButtonsChange(nsecs_t when, nsecs_
             // return early to prevent this tap
             return out;
         }
-    } else if (ENABLE_TOUCHPAD_PALM_REJECTION && mReaderContext.isPreventingTouchpadTaps()) {
+    } else if (mReaderContext.isPreventingTouchpadTaps()) {
         enableTapToClick(when);
         if (gesture.details.buttons.is_tap) {
             // return early to prevent this tap

services/inputflinger/tests/GestureConverter_test.cpp

@@ -42,8 +42,6 @@ namespace input_flags = com::android::input::flags;
 
 namespace {
 
-const auto TOUCHPAD_PALM_REJECTION =
-        ACONFIG_FLAG(input_flags, enable_touchpad_typing_palm_rejection);
 const auto TOUCHPAD_PALM_REJECTION_V2 =
         ACONFIG_FLAG(input_flags, enable_v2_touchpad_typing_palm_rejection);
 
@@ -1461,7 +1459,6 @@ TEST_F(GestureConverterTest, Click) {
 }
 
 TEST_F_WITH_FLAGS(GestureConverterTest, TapWithTapToClickDisabled,
-                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION),
                   REQUIRES_FLAGS_DISABLED(TOUCHPAD_PALM_REJECTION_V2)) {
     nsecs_t currentTime = ARBITRARY_GESTURE_TIME;
 
@@ -1574,8 +1571,7 @@ TEST_F_WITH_FLAGS(GestureConverterTest, TapWithTapToClickDisabledWithDelay,
     ASSERT_THAT(args, Each(VariantWith<NotifyMotionArgs>(WithRelativeMotion(0.f, 0.f))));
 }
 
-TEST_F_WITH_FLAGS(GestureConverterTest, ClickWithTapToClickDisabled,
-                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION)) {
+TEST_F(GestureConverterTest, ClickWithTapToClickDisabled) {
     // Click should still produce button press/release events
     mReader->getContext()->setPreventingTouchpadTaps(true);
 
@@ -1644,8 +1640,7 @@ TEST_F_WITH_FLAGS(GestureConverterTest, ClickWithTapToClickDisabled,
     ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
 }
 
-TEST_F_WITH_FLAGS(GestureConverterTest, MoveEnablesTapToClick,
-                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION)) {
+TEST_F(GestureConverterTest, MoveEnablesTapToClick) {
     // initially disable tap-to-click
     mReader->getContext()->setPreventingTouchpadTaps(true);