Revert of Add POINTER_TYPE_ERASER to EventPointerType

ui/events/ozone/evdev/tablet_event_converter_evdev.cc

Index: ui/events/ozone/evdev/tablet_event_converter_evdev.cc
diff --git a/ui/events/ozone/evdev/tablet_event_converter_evdev.cc b/ui/events/ozone/evdev/tablet_event_converter_evdev.cc
index 869520f2f276f934fff486ac65886103fbf7eeb3..2ba5a7e2d4b90420969208cb071405d7ea5c8dd4 100644
--- a/ui/events/ozone/evdev/tablet_event_converter_evdev.cc
+++ b/ui/events/ozone/evdev/tablet_event_converter_evdev.cc
@@ -20,12 +20,6 @@
 // Convert tilt from [min, min + num_values) to [-90deg, +90deg)
 float ScaleTilt(int value, int min_value, int num_values) {
   return 180.f * (value - min_value) / num_values - 90.f;
-}
-
-EventPointerType GetToolType(int button_tool) {
-  if (button_tool == BTN_TOOL_RUBBER)
-    return EventPointerType::POINTER_TYPE_ERASER;
-  return EventPointerType::POINTER_TYPE_PEN;
 }
 
 }  // namespace
@@ -186,7 +180,7 @@
   dispatcher_->DispatchMouseButtonEvent(MouseButtonEventParams(
       input_device_.id, EF_NONE, cursor_->GetLocation(), button, down,
       false /* allow_remap */,
-      PointerDetails(GetToolType(stylus_),
+      PointerDetails(EventPointerType::POINTER_TYPE_PEN,
                      /* radius_x */ 0.0f, /* radius_y */ 0.0f, pressure_,
                      tilt_x_, tilt_y_),
       TimeTicksFromInputEvent(input)));
@@ -209,7 +203,7 @@
 
   dispatcher_->DispatchMouseMoveEvent(MouseMoveEventParams(
       input_device_.id, EF_NONE, cursor_->GetLocation(),
-      PointerDetails(GetToolType(stylus_),
+      PointerDetails(EventPointerType::POINTER_TYPE_PEN,
                      /* radius_x */ 0.0f, /* radius_y */ 0.0f, pressure_,
                      tilt_x_, tilt_y_),
       TimeTicksFromInputEvent(input)));