oem: ampere: event: remove is_method_error call

An `is_method_error` is not appropriate after an sdbus `call` since
`call` will always throw an exception.  Remove the pointless call
and instead catch the exception.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I1a4c9e97fd08be6fe55229a7fba6867ca581fc91
diff --git a/oem/ampere/event/cper.cpp b/oem/ampere/event/cper.cpp
index 3b3436d..36c0f1f 100644
--- a/oem/ampere/event/cper.cpp
+++ b/oem/ampere/event/cper.cpp
@@ -242,11 +242,7 @@
             bus.new_method_call(logBusName, logPath, logIntf, "IpmiSelAddOem");
         method.append(message, evtData, recordType);
 
-        auto selReply = bus.call(method);
-        if (selReply.is_method_error())
-        {
-            lg2::error("addCperSELLog: add SEL log error");
-        }
+        bus.call(method);
     }
     catch (const std::exception& e)
     {