Revert "InputDevice: return std::optional from getAbsoluteAxisInfo"

This reverts commit 67e1ae63301dc02f4d940b5f480b1f495b3b977e.

Reason for revert: b/353921348

Change-Id: I6148dec70b7ca1c9a21d841b791168b5bfc67ca3
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
index d48fd9b..c040a7b 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
@@ -16,8 +16,6 @@
 
 #pragma once
 
-#include <optional>
-
 #include "InputMapper.h"
 
 #include "SingleTouchMotionAccumulator.h"
@@ -45,7 +43,7 @@
 
 private:
     SingleTouchMotionAccumulator mSingleTouchMotionAccumulator;
-    std::optional<RawAbsoluteAxisInfo> mRawPressureAxis;
+    RawAbsoluteAxisInfo mRawPressureAxis;
     TouchButtonAccumulator mTouchButtonAccumulator;
 
     StylusState mStylusState;