meson: Eliminate warning messages

Eliminate `[-Werror=unused-parameter]` warning message

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: If4f8aee3ce71b5c6e6ad1d168859c03bd7bfa933
diff --git a/test/interface_ops_test.cpp b/test/interface_ops_test.cpp
index a308a55..3033423 100644
--- a/test/interface_ops_test.cpp
+++ b/test/interface_ops_test.cpp
@@ -88,7 +88,8 @@
         g_currentMock->serializeThreeArgs(path, iface, obj);
     }
 
-    static void deserialize(const std::string& path, const std::string& iface)
+    static void deserialize(const std::string& /* path */,
+                            const std::string& /* iface */)
     {
         g_currentMock->deserializeNoop();
     }