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

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ife4795f07d72b2dd3dd0f218b4cf9777cb02dec4
diff --git a/command_table.cpp b/command_table.cpp
index 2a964ef..3dc531a 100644
--- a/command_table.cpp
+++ b/command_table.cpp
@@ -17,9 +17,8 @@
 
 namespace ipmi
 {
-using Value = sdbusplus::message::variant<bool, uint8_t, int16_t, uint16_t,
-                                          int32_t, uint32_t, int64_t, uint64_t,
-                                          double, std::string>;
+using Value = std::variant<bool, uint8_t, int16_t, uint16_t, int32_t, uint32_t,
+                           int64_t, uint64_t, double, std::string>;
 
 } // namespace ipmi