[6.0] 634197921 Make f00007.vtc stable

[Dridi Boukelmoune]

commit 634197921927bab4641790214fa531ce98773d2b
Author: Martin Blix Grydeland <martin at varnish-software.com>
Date:   Tue Jun 22 11:50:19 2021 +0200

    Make f00007.vtc stable

diff --git a/bin/varnishtest/tests/f00007.vtc b/bin/varnishtest/tests/f00007.vtc
index 1cf45aad1..e982548a0 100644
--- a/bin/varnishtest/tests/f00007.vtc
+++ b/bin/varnishtest/tests/f00007.vtc
@@ -62,8 +62,8 @@ client c3 {
 	stream 1 {
 		txreq -req POST -url /3 -hdr "content-length" "1" -nostrend
 		txdata -data "A" -nostrend
+		delay 0.5
 		txdata -data "GET /FAIL HTTP/1.1\r\n\r\n"
-		rxwinup
 		rxrst
 		expect rst.err == PROTOCOL_ERROR
 	} -run
@@ -74,8 +74,6 @@ client c4 {
 		txreq -req POST -url /4 -hdr "content-length" "1" -nostrend
 		txdata -data "A" -nostrend
 		txdata
-		rxwinup
-		rxwinup
 		rxresp
 		expect resp.status == 200
 	} -run