Revert "Adding per UID WiFi power distribution."

This CL is breaking the clockwork settings app in master.  Reverting
until Adam has a chance to investigate.

This reverts commit 5ab174bac0.

Change-Id: Ieb11423c11cf9874a6175dce49843d0e1080c590

services/core/java/com/android/server/ConnectivityService.java

@@ -1487,7 +1487,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
                 NetworkCapabilities.TRANSPORT_WIFI)) {
             timeout = Settings.Global.getInt(mContext.getContentResolver(),
                                              Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI,
-                                             5);
+                                             0);
             type = ConnectivityManager.TYPE_WIFI;
         } else {
             // do not track any other networks