Organize the imports in systemui.

To follow android conventions, more importantly to remove the
unused.

Change-Id: I75881718e84360a579a3b02c26489ad250bc9227
diff --git a/packages/SystemUI/src/com/android/systemui/LoadAverageService.java b/packages/SystemUI/src/com/android/systemui/LoadAverageService.java
index 2b45ad1..37e974b 100644
--- a/packages/SystemUI/src/com/android/systemui/LoadAverageService.java
+++ b/packages/SystemUI/src/com/android/systemui/LoadAverageService.java
@@ -16,8 +16,6 @@
 
 package com.android.systemui;
 
-import com.android.internal.os.ProcessStats;
-
 import android.app.Service;
 import android.content.Context;
 import android.content.Intent;
@@ -31,6 +29,8 @@
 import android.view.View;
 import android.view.WindowManager;
 
+import com.android.internal.os.ProcessStats;
+
 public class LoadAverageService extends Service {
     private View mView;