THRIFT-2801: cpp - compilation warnings removed from test suite

Client: C++
Patch: Konrad Grochowski

Unused parameters mostly
diff --git a/lib/cpp/test/ZlibTest.cpp b/lib/cpp/test/ZlibTest.cpp
index 1e8b646..49c5514 100644
--- a/lib/cpp/test/ZlibTest.cpp
+++ b/lib/cpp/test/ZlibTest.cpp
@@ -386,6 +386,8 @@
 }
 
 boost::unit_test::test_suite* init_unit_test_suite(int argc, char* argv[]) {
+  THRIFT_UNUSED_VARIABLE(argc);
+  THRIFT_UNUSED_VARIABLE(argv);
   uint32_t seed = static_cast<uint32_t>(time(NULL));
   printf("seed: %" PRIu32 "\n", seed);
   rng.seed(seed);