Removed scalastyle in heartbeat.scala
diff --git a/performers/stream/src/main/scala/org/apache/iota/fey/performer/Heartbeat.scala b/performers/stream/src/main/scala/org/apache/iota/fey/performer/Heartbeat.scala
index cf2e87d..9409c63 100644
--- a/performers/stream/src/main/scala/org/apache/iota/fey/performer/Heartbeat.scala
+++ b/performers/stream/src/main/scala/org/apache/iota/fey/performer/Heartbeat.scala
@@ -1,18 +1,19 @@
-
-// Licensed to the Apache Software Foundation (ASF) under one or more
-// contributor license agreements.  See the NOTICE file distributed with
-// this work for additional information regarding copyright ownership.
-// The ASF licenses this file to You under the Apache License, Version 2.0
-// (the "License"); you may not use this file except in compliance with
-// the License.  You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// ee the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 package org.apache.iota.fey.performer
 
@@ -52,4 +53,4 @@
     propagateMessage("alive")
   }
 
-}
\ No newline at end of file
+}