Merge cherrypicks of [5426558, 5426683, 5424327] into pi-qpr1-release

Change-Id: I163f6ccaa1f6b67aefa7870acff37fdd0bf51cf5
diff --git a/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java b/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java
index c923456..f4ae9cc 100644
--- a/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java
+++ b/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java
@@ -263,7 +263,6 @@
         mContext = context;
         // Memory optimization - close idle connections after 30s of inactivity
         setIdleConnectionTimeout(IDLE_CONNECTION_TIMEOUT_MS);
-        setWriteAheadLoggingEnabled(false);
         try {
             PhoneFactory.addLocalLog(TAG, 100);
         } catch (IllegalArgumentException e) {