x86/nmi: Remove stale EDAC include leftover

db47d5f8 ("x86/nmi, EDAC: Get rid of DRAM error reporting thru PCI SERR NMI")

forgot to remove it. Drop it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190923193807.30896-1-bp@alien8.de

arch/x86/kernel/traps.c

@@ -37,11 +37,6 @@
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/io.h>
-
-#if defined(CONFIG_EDAC)
-#include <linux/edac.h>
-#endif
-
 #include <asm/stacktrace.h>
 #include <asm/processor.h>
 #include <asm/debugreg.h>