SQOOP-3487: Remove unintentionally added rowkeys (via PUT in ToStringPutTransformer.java) during HBase (incremental) import

(Zhou Hong via Attila Szabo)
diff --git a/src/java/org/apache/sqoop/hbase/ToStringPutTransformer.java b/src/java/org/apache/sqoop/hbase/ToStringPutTransformer.java
index 8600382..29e9034 100644
--- a/src/java/org/apache/sqoop/hbase/ToStringPutTransformer.java
+++ b/src/java/org/apache/sqoop/hbase/ToStringPutTransformer.java
@@ -201,7 +201,6 @@
 	          put.addColumn(colFamilyBytes, getFieldNameBytes(colName),
 	              Bytes.toBytes(toHBaseString(val)));
           }
-          mutationList.add(put);
         } else {
           switch (nullMode) {
           case Delete: