[master] 47586588f Dont double-free the director-lock

[Poul-Henning Kamp]

commit 47586588fccde1869a8bec76001406fc6ebb0b84
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Wed Apr 21 10:58:30 2021 +0000

    Dont double-free the director-lock

diff --git a/bin/varnishd/cache/cache_backend.c b/bin/varnishd/cache/cache_backend.c
index 3225e1f6d..c86a70a0b 100644
--- a/bin/varnishd/cache/cache_backend.c
+++ b/bin/varnishd/cache/cache_backend.c
@@ -446,7 +446,6 @@ vbe_free(struct backend *be)
 #undef DN
 	free(be->endpoint);
 
-	Lck_Delete(be->director->mtx);
 	FREE_OBJ(be);
 }