[ASTERIXDB-2513][BAD] Adapt to DateTime API Change

Change-Id: I79b554eb760100c52a411b65774008fb98d6d1bf
diff --git a/asterix-bad/src/main/java/org/apache/asterix/bad/runtime/NotifyBrokerRuntime.java b/asterix-bad/src/main/java/org/apache/asterix/bad/runtime/NotifyBrokerRuntime.java
index 9da9e03..a353edc 100644
--- a/asterix-bad/src/main/java/org/apache/asterix/bad/runtime/NotifyBrokerRuntime.java
+++ b/asterix-bad/src/main/java/org/apache/asterix/bad/runtime/NotifyBrokerRuntime.java
@@ -178,11 +178,7 @@
                 int resultSetOffset = inputArg2.getStartOffset();
                 bbis.setByteBuffer(tRef.getFrameTupleAccessor().getBuffer(), resultSetOffset + 1);
                 ADateTime executionTime = ADateTimeSerializerDeserializer.INSTANCE.deserialize(di);
-                try {
-                    executionTimeString = executionTime.toSimpleString();
-                } catch (IOException e) {
-                    throw HyracksDataException.create(e);
-                }
+                executionTimeString = executionTime.toSimpleString();
             }
 
             int serBrokerOffset = inputArg0.getStartOffset();