tests: remove an unused header file

Change-Id: I10ecab25258019a1fc9f3b480949361ca2a26481
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/oem/ibm/test/libpldmresponder_fileio_test.cpp b/oem/ibm/test/libpldmresponder_fileio_test.cpp
index 0c0492a..1d83ee0 100644
--- a/oem/ibm/test/libpldmresponder_fileio_test.cpp
+++ b/oem/ibm/test/libpldmresponder_fileio_test.cpp
@@ -11,7 +11,6 @@
 #include "xyz/openbmc_project/Common/error.hpp"
 
 #include <nlohmann/json.hpp>
-#include <phosphor-logging/elog-errors.hpp>
 
 #include <filesystem>
 #include <fstream>