Fix build due to merge of duplicate variable.

Change-Id: I1e8bad32b2118542408b6d8b87302861e3873d32
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index df297c4..80c604f 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -266,7 +266,6 @@
     WindowManagerFuncs mWindowManagerFuncs;
     WindowManagerInternal mWindowManagerInternal;
     PowerManager mPowerManager;
-    PowerManagerInternal mPowerManagerInternal;
     ActivityManagerInternal mActivityManagerInternal;
     DreamManagerInternal mDreamManagerInternal;
     PowerManagerInternal mPowerManagerInternal;