Have SyncManager stopSelf if there are no EAS accounts

Change-Id: Icfca3a7f93a9eb382dca19b9f69c461e92eb6bd8
diff --git a/src/com/android/exchange/SyncManager.java b/src/com/android/exchange/SyncManager.java
index b7c9594..96196e6 100644
--- a/src/com/android/exchange/SyncManager.java
+++ b/src/com/android/exchange/SyncManager.java
@@ -26,7 +26,6 @@
 import com.android.email.provider.EmailContent.Mailbox;
 import com.android.email.provider.EmailContent.MailboxColumns;
 import com.android.email.provider.EmailContent.Message;
-import com.android.email.provider.EmailContent.MessageColumns;
 import com.android.email.provider.EmailContent.SyncColumns;
 import com.android.exchange.utility.FileLogger;
 
@@ -667,6 +666,10 @@
         }
 
         maybeStartSyncManagerThread();
+        if (sServiceThread == null) {
+            Log.d(TAG, "!!! EAS SyncManager stopping self");
+            stopSelf();
+        }
     }
 
     @Override