KNOWN_BUGS.md: remove fixed GnuTLS <-> OpenSSL incompat bug

The entry is about GnuTLS not sending the client cert when it doesn't
match the `DN` the server requested.  OpenSSL does the opposite.

The issue was already fixed by #4958 and removed from KNOWN_BUGS,
but it was added back to the list by #16677, seemingly by mistake.

The issue is still fixed for GnuTLS >= 3.5.0.
As curl only supports GnuTLS >= 3.6.5, remove the bug entry from
KNOWN_BUGS.md

Fixes #21720
Closes #21722

diff --git a/docs/KNOWN_BUGS.md b/docs/KNOWN_BUGS.md
index d6bdf1410fa6fdf2171d1b9f1c2d886f165842cf..a2d3b62729e8c69b70f57c52b6a4ceb7e11289b9 100644 (file)
--- a/docs/KNOWN_BUGS.md
+++ b/docs/KNOWN_BUGS.md
@@ -25,14 +25,6 @@ instead seems to trigger a crash.
 
 See [curl issue 17626](https://github.com/curl/curl/issues/17626)
 
-## Client cert handling with Issuer `DN` differs between backends
-
-When the specified client certificate does not match any of the
-server-specified `DN` fields, the OpenSSL and GnuTLS backends behave
-differently. The GitHub discussion may contain a solution.
-
-See [curl issue 1411](https://github.com/curl/curl/issues/1411)
-
 ## Client cert (MTLS) issues with Schannel
 
 See [curl issue 3145](https://github.com/curl/curl/issues/3145)