Remove InputMethodAndSubtypeEnabler and call intent of Settings.ACTION_INPUT_METHOD_AND_SUBTYPE_ENABLER

Change-Id: I467cfba9644ec266f6a98f7aec0886ad205fef4f
diff --git a/services/java/com/android/server/InputMethodManagerService.java b/services/java/com/android/server/InputMethodManagerService.java
index 70bde01..3f378e1 100644
--- a/services/java/com/android/server/InputMethodManagerService.java
+++ b/services/java/com/android/server/InputMethodManagerService.java
@@ -25,7 +25,6 @@
 import com.android.internal.view.IInputMethodManager;
 import com.android.internal.view.IInputMethodSession;
 import com.android.internal.view.InputBindResult;
-import com.android.internal.view.InputMethodAndSubtypeEnabler;
 
 import com.android.server.StatusBarManagerService;
 
@@ -1549,10 +1548,10 @@
     }
 
     private void showInputMethodAndSubtypeEnabler() {
-        Intent intent = new Intent();
-        intent.setClassName("android", InputMethodAndSubtypeEnabler.class.getCanonicalName());
+        Intent intent = new Intent(Settings.ACTION_INPUT_METHOD_AND_SUBTYPE_ENABLER);
         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
-                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
+                | Intent.FLAG_ACTIVITY_CLEAR_TOP);
         mContext.startActivity(intent);
     }