Fixed Sonar issue in FileRecorder

Removed unused imports
Issue-ID: CCSDK-755
Change-Id: I1e303a0490e0da0f1ca998197524d4400ad80eb5
Signed-off-by: ezhil <ezhrajam@in.ibm.com>
diff --git a/sli/recording/src/main/java/org/onap/ccsdk/sli/core/sli/recording/FileRecorder.java b/sli/recording/src/main/java/org/onap/ccsdk/sli/core/sli/recording/FileRecorder.java
index ac3dbd2..37e4fe8 100644
--- a/sli/recording/src/main/java/org/onap/ccsdk/sli/core/sli/recording/FileRecorder.java
+++ b/sli/recording/src/main/java/org/onap/ccsdk/sli/core/sli/recording/FileRecorder.java
@@ -5,6 +5,8 @@
  * Copyright (C) 2017 AT&T Intellectual Property. All rights
  * 						reserved.
  * ================================================================================
+ * Modifications Copyright (C) 2018 IBM.
+ * ================================================================================
  * Licensed 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
@@ -24,7 +26,6 @@
 import java.io.File;
 import java.io.FileWriter;
 import java.io.PrintWriter;
-import java.io.IOException;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;