Fix issue found by FindBugs

Bug: 2664472
Change-Id: I861d1a1a3f8f6af4cb62c67b6acfb2c03bcba721
diff --git a/src/com/android/exchange/adapter/ContactsSyncAdapter.java b/src/com/android/exchange/adapter/ContactsSyncAdapter.java
index 8b4adba..c05a820 100644
--- a/src/com/android/exchange/adapter/ContactsSyncAdapter.java
+++ b/src/com/android/exchange/adapter/ContactsSyncAdapter.java
@@ -1071,8 +1071,8 @@
 
             // If we've found an existing data row, we'll delete it.  Any rows left at the
             // end should be deleted...
-            if (result != null) {
-                list.remove(result);
+            for (NamedContentValues values : result) {
+                list.remove(values);
             }
 
             // Return the row found (or null)