InputFlinger Split: Use libinputreader in InputManagerService

This changes native InputManagerService to use the new backend library
for inputflinger: libinputreader.

Bug: 119264687
Test: manual: Build, run, and test input (touch, mouse)
Change-Id: I619492d5492cd8444d7c2cc7af9717c19c938256
diff --git a/services/core/jni/com_android_server_input_InputManagerService.cpp b/services/core/jni/com_android_server_input_InputManagerService.cpp
index 3943dba..ba6f39f 100644
--- a/services/core/jni/com_android_server_input_InputManagerService.cpp
+++ b/services/core/jni/com_android_server_input_InputManagerService.cpp
@@ -348,8 +348,7 @@
     }
     mInteractive = true;
 
-    sp<EventHub> eventHub = new EventHub();
-    mInputManager = new InputManager(eventHub, this, this);
+    mInputManager = new InputManager(this, this);
 }
 
 NativeInputManager::~NativeInputManager() {