Disable verbose NetworkStats logging.

Bug: 6076584
Change-Id: I4efcda2b474f623f4fe70db8b43b0aa69017d749
diff --git a/services/java/com/android/server/net/NetworkStatsRecorder.java b/services/java/com/android/server/net/NetworkStatsRecorder.java
index 240cc1c..290bd2c 100644
--- a/services/java/com/android/server/net/NetworkStatsRecorder.java
+++ b/services/java/com/android/server/net/NetworkStatsRecorder.java
@@ -50,7 +50,7 @@
  */
 public class NetworkStatsRecorder {
     private static final String TAG = "NetworkStatsRecorder";
-    private static final boolean LOGD = true;
+    private static final boolean LOGD = false;
     private static final boolean LOGV = false;
 
     private final FileRotator mRotator;