Remove unused headers from log.c

436f657e · Austin Clements · 788e27de · 436f657e
--- a/log.c
+++ b/log.c
 #include "types.h"
 #include "defs.h"
 #include "param.h"
-#include "mmu.h"
-#include "proc.h"
-#include "x86.h"
 #include "spinlock.h"
 #include "fs.h"
 #include "buf.h"