security: Adjust unlocking TPM process.

Change-Id: Iee8787bb9aaa8e05fab9544bd35ce9fe31eecf29
diff --git a/examples/producer.cpp b/examples/producer.cpp
index d081cb3..c098739 100644
--- a/examples/producer.cpp
+++ b/examples/producer.cpp
@@ -18,8 +18,7 @@
 {
 public:
   Producer()
-  {
-  }
+  {}
 
   void
   onInterest(const Name& name, const Interest& interest)