THRIFT-2802: cpp - tutorial warnings removed

Client: C++
Patch: Konrad Grochowski

"unused parameter" warnings removed
diff --git a/tutorial/cpp/CppClient.cpp b/tutorial/cpp/CppClient.cpp
index 8ef976b..4475338 100644
--- a/tutorial/cpp/CppClient.cpp
+++ b/tutorial/cpp/CppClient.cpp
@@ -33,7 +33,7 @@
 using namespace tutorial;
 using namespace shared;
 
-int main(int argc, char** argv) {
+int main() {
   boost::shared_ptr<TTransport> socket(new TSocket("localhost", 9090));
   boost::shared_ptr<TTransport> transport(new TBufferedTransport(socket));
   boost::shared_ptr<TProtocol> protocol(new TBinaryProtocol(transport));