[6.0] e8949a68e flexelint 838: Previously assigned value ... has not been used

[Dridi Boukelmoune]

commit e8949a68e45849498c3ac157542021467deb29f2
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Thu Apr 5 11:50:34 2018 +0200

    flexelint 838: Previously assigned value ... has not been used

diff --git a/bin/varnishd/proxy/cache_proxy_proto.c b/bin/varnishd/proxy/cache_proxy_proto.c
index 5f821ac77..022224dbf 100644
--- a/bin/varnishd/proxy/cache_proxy_proto.c
+++ b/bin/varnishd/proxy/cache_proxy_proto.c
@@ -311,7 +311,7 @@ vpx_proto2(const struct worker *wrk, struct req *req)
 	int l, hdr_len;
 	uintptr_t *up;
 	uint16_t *tlv_len_p;
-	uint16_t tlv_len = 0;
+	uint16_t tlv_len;
 	const uint8_t *p;
 	char *d, *tlv_start;
 	sa_family_t pfam = 0xff;