Revert "InputMapper refactor: Revert "fix touch issue on portrai..."

Revert submission 23779328

Reason for revert: Found touch issues on devices in latest qpr-build 

Reverted changes: /q/submissionid:23779328

Change-Id: I04301cc46cce6624ecbeee37771ee02fbeff3218
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index bd5a964..aee1415 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -500,9 +500,9 @@
         classes.test(InputDeviceClass::TOUCH_MT) && !isSonyDualShock4Touchpad) {
         mappers.push_back(createInputMapper<TouchpadInputMapper>(contextPtr, readerConfig));
     } else if (classes.test(InputDeviceClass::TOUCH_MT)) {
-        mappers.push_back(createInputMapper<MultiTouchInputMapper>(contextPtr, readerConfig));
+        mappers.push_back(std::make_unique<MultiTouchInputMapper>(contextPtr, readerConfig));
     } else if (classes.test(InputDeviceClass::TOUCH)) {
-        mappers.push_back(createInputMapper<SingleTouchInputMapper>(contextPtr, readerConfig));
+        mappers.push_back(std::make_unique<SingleTouchInputMapper>(contextPtr, readerConfig));
     }
 
     // Joystick-like devices.