sdbusplus: replace message::variant with std::variant

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ie60d8442edab9622240cf47840e0d62b8e57a5b4
diff --git a/sdbusplus.hpp b/sdbusplus.hpp
index f1722f4..6844dfa 100644
--- a/sdbusplus.hpp
+++ b/sdbusplus.hpp
@@ -25,7 +25,7 @@
                     const std::string& objPath, const std::string& interface,
                     const std::string& property, const T& value)
     {
-        sdbusplus::message::variant<T> data = value;
+        std::variant<T> data = value;
 
         try
         {
@@ -59,7 +59,7 @@
         methodCall.append(interface.c_str());
         methodCall.append(property);
 
-        sdbusplus::message::variant<Property> value;
+        std::variant<Property> value;
 
         try
         {