[4.0] 5209364 Remove the unused per random director struct bitmap

[Lasse Karstensen]

commit 52093641e20c4f1ce91fb00eefd231f54286798c
Author: Martin Blix Grydeland <martin at varnish-software.com>
Date:   Mon Jan 12 15:06:36 2015 +0100

    Remove the unused per random director struct bitmap

diff --git a/lib/libvmod_directors/random.c b/lib/libvmod_directors/random.c
index 8ae36a7..c32167e 100644
--- a/lib/libvmod_directors/random.c
+++ b/lib/libvmod_directors/random.c
@@ -46,7 +46,6 @@ struct vmod_directors_random {
 #define VMOD_DIRECTORS_RANDOM_MAGIC		0x4732d092
 	struct vdir				*vd;
 	unsigned				n_backend;
-	struct vbitmap				*vbm;
 };
 
 static unsigned __match_proto__(vdi_healthy)
@@ -85,8 +84,6 @@ vmod_random__init(const struct vrt_ctx *ctx, struct vmod_directors_random **rrp,
 	AZ(*rrp);
 	ALLOC_OBJ(rr, VMOD_DIRECTORS_RANDOM_MAGIC);
 	AN(rr);
-	rr->vbm = vbit_init(8);
-	AN(rr->vbm);
 	*rrp = rr;
 	vdir_new(&rr->vd, vcl_name, vmod_rr_healthy, vmod_rr_getfd, rr);
 }
@@ -100,7 +97,6 @@ vmod_random__fini(struct vmod_directors_random **rrp)
 	*rrp = NULL;
 	CHECK_OBJ_NOTNULL(rr, VMOD_DIRECTORS_RANDOM_MAGIC);
 	vdir_delete(&rr->vd);
-	vbit_destroy(rr->vbm);
 	FREE_OBJ(rr);
 }