edac: remove arch-specific parameter for the error handler

Remove the arch-dependent parameter, as it were not used,
as the MCE tracepoint weren't implemented. It probably doesn't
make sense to have an MCE-specific tracepoint, as this will
cost more bytes at the tracepoint, and tracepoint is not free.

The changes at the EDAC drivers were done by this small perl script:

	$file .=$_ while (<>);
	$file =~ s/(edac_mc_handle_error)\s*\(([^\;]+)\,([^\,\)]+)\s*\)/$1($2)/g;
	print $file;

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/edac/i5400_edac.c b/drivers/edac/i5400_edac.c
index 90fad3a..f2bfc26 100644
--- a/drivers/edac/i5400_edac.c
+++ b/drivers/edac/i5400_edac.c
@@ -557,7 +557,7 @@
 	edac_mc_handle_error(tp_event, mci, 0, 0, 0,
 			     branch >> 1, -1, rank,
 			     rdwr ? "Write error" : "Read error",
-			     msg, NULL);
+			     msg);
 }
 
 /*
@@ -629,7 +629,7 @@
 		edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0, 0,
 				     branch >> 1, channel % 2, rank,
 				     rdwr ? "Write error" : "Read error",
-				     msg, NULL);
+				     msg);
 
 		return;
 	}