Remove extra include boost/shared_ptr
diff --git a/ndn-cpp/common.h b/ndn-cpp/common.h
index 33c78a8..2b75bc8 100644
--- a/ndn-cpp/common.h
+++ b/ndn-cpp/common.h
@@ -60,7 +60,6 @@
} // ndn
#include <vector>
-#include <boost/shared_ptr.hpp>
#include <boost/exception/all.hpp>
#include <boost/function.hpp>
#include <string>
@@ -72,7 +71,6 @@
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/iostreams/device/back_inserter.hpp>
#include <boost/range/iterator_range.hpp>
-#include <boost/make_shared.hpp>
namespace ndn {
typedef std::vector<unsigned char> Bytes;