Drop unnecessary qctx.prepare_new_response() call

The ans3 custom server does not have any zones defined, so the responses
passed to its handlers by core isctest.asyncserver code are guaranteed
to be empty.  Remove a call to qctx.prepare_new_response() from
CookieHandler.get_responses() as it is redundant.

(cherry picked from commit 802c03313f99f622b979aa3bb548e3a4eb4340d3)

diff --git a/bin/tests/system/resend_loop/ans3/ans.py b/bin/tests/system/resend_loop/ans3/ans.py
index 9a1ccf97cf0c248efb8176a1e460b3a1c6a2fc09..f6543e0eace863fe4c4f94cf7ad851cf54006822 100644 (file)
--- a/bin/tests/system/resend_loop/ans3/ans.py
+++ b/bin/tests/system/resend_loop/ans3/ans.py
@@ -67,8 +67,6 @@ class CookieHandler(DomainHandler):
         self, qctx: QueryContext
     ) -> AsyncGenerator[DnsResponseSend, None]:
 
-        qctx.prepare_new_response()
-
         # Check for client cookie
         cookie = _get_cookie(qctx)