[master] 22fdf68 Don't include cache_backend.h, it's off-limits to VMODS

[Poul-Henning Kamp]

commit 22fdf6885847bd750468acfa86757696aec53ce8
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Sat Sep 23 21:56:43 2017 +0000

    Don't include cache_backend.h, it's off-limits to VMODS

diff --git a/lib/libvmod_debug/vmod_debug_dyn.c b/lib/libvmod_debug/vmod_debug_dyn.c
index caed6bc..10f97aa 100644
--- a/lib/libvmod_debug/vmod_debug_dyn.c
+++ b/lib/libvmod_debug/vmod_debug_dyn.c
@@ -36,7 +36,6 @@
 #include "vrt.h"
 
 #include "cache/cache_director.h"
-#include "cache/cache_backend.h"
 
 #include "vsa.h"
 #include "vcc_if.h"