[4.0] b84a901 Remove duplicated line

[Lasse Karstensen]

commit b84a901bb563b846251fd3a81b9010e709f6f4c1
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Tue Sep 9 18:28:39 2014 +0100

    Remove duplicated line

diff --git a/bin/varnishd/cache/cache_fetch.c b/bin/varnishd/cache/cache_fetch.c
index 92168e8..699d9a8 100644
--- a/bin/varnishd/cache/cache_fetch.c
+++ b/bin/varnishd/cache/cache_fetch.c
@@ -713,7 +713,6 @@ vbf_stp_error(struct worker *wrk, struct busyobj *bo)
 		bo->synth_body = NULL;
 		if (bo->retries++ < cache_param->max_retries)
 			return (F_STP_RETRY);
-		bo->synth_body = NULL;
 		return (F_STP_FAIL);
 	}