remove unnecessary includes

Reference: /n/sources/patch/saved/replicaclean
Date: Mon Apr  5 19:56:24 CES 2010
Signed-off-by: quanstro@quanstro.net

--- /sys/src/cmd/replica/revdump.c	Mon Apr  5 19:56:15 2010
+++ /sys/src/cmd/replica/revdump.c	Mon Apr  5 19:56:14 2010
@@ -1,7 +1,6 @@
 #include <u.h>
 #include <libc.h>
 #include <bio.h>
-#include <disk.h>
 
 static void
 enm(char *new, char *old, Dir *d, void*)
--- /sys/src/cmd/replica/revproto.c	Mon Apr  5 19:56:18 2010
+++ /sys/src/cmd/replica/revproto.c	Mon Apr  5 19:56:16 2010
@@ -1,9 +1,6 @@
 #include <u.h>
 #include <libc.h>
 #include <bio.h>
-#include <auth.h>
-#include <fcall.h>
-#include <disk.h>
 
 enum {
 	LEN	= 8*1024,