sdbusplus: remove deprecated variant_ns

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ie341309b8c1811fe3960dc25aaa9c7f6a9e7aafb
diff --git a/src/utils.hpp b/src/utils.hpp
index ae08156..758d5fc 100644
--- a/src/utils.hpp
+++ b/src/utils.hpp
@@ -147,7 +147,7 @@
         any result =
             getPropertyImpl(bus, service, path, interface, propertyName);
         auto value = any_cast<PropertyType>(result);
-        return sdbusplus::message::variant_ns::get<T>(value);
+        return std::get<T>(value);
     }
 };