gnu: knot: Update to 3.0.1.

* gnu/packages/dns.scm (knot): Update to 3.0.1.
[source]: Remove patch.
* gnu/packages/patches/knot-test_net_shortwrite-ensure-connection.patch:
Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu/local.mk

@@ -1198,7 +1198,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/kpackage-allow-external-paths.patch	\
   %D%/packages/patches/kmplayer-aarch64.patch			\
   %D%/packages/patches/kmplayer-upstream_Fix-build-with-Qt-5.9.patch	\
-  %D%/packages/patches/knot-test_net_shortwrite-ensure-connection.patch	\
   %D%/packages/patches/kobodeluxe-paths.patch			\
   %D%/packages/patches/kobodeluxe-enemies-pipe-decl.patch	\
   %D%/packages/patches/kobodeluxe-const-charp-conversion.patch	\

gnu/packages/dns.scm

@@ -807,7 +807,7 @@ (define-public yadifa
 (define-public knot
   (package
     (name "knot")
-    (version "3.0.0")
+    (version "3.0.1")
     (source
      (origin
        (method git-fetch)
@@ -816,9 +816,7 @@ (define-public knot
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0fkvip7n5ihjfwnnivdc3jf44y8p85ifglvq7b0anxvj9cg1m78f"))
-       (patches
-        (search-patches "knot-test_net_shortwrite-ensure-connection.patch"))
+        (base32 "10mlzldxqvbaw78nghkr0s73rlbpz9wg16z14321xw2l9xfibkad"))
        (modules '((guix build utils)))
        (snippet
         '(begin

gnu/packages/patches/knot-test_net_shortwrite-ensure-connection.patch

@@ -1,19 +0,0 @@
-This patch duplicates upstream commit 4144d1e, which helps ensure the
-"test_net_shortwrite" test suite can succeed across all platforms by
-deepening the pending-connection queue of the server it creates from 0
-to 1.
-
-See the original report at
-https://gitlab.nic.cz/knot/knot-dns/-/issues/693
-
---- a/tests/contrib/test_net_shortwrite.c
-+++ b/tests/contrib/test_net_shortwrite.c
-@@ -88,7 +88,7 @@ int main(int argc, char *argv[])
-	int server = net_bound_socket(SOCK_STREAM, &addr, 0);
-	ok(server >= 0, "server: bind socket");
-
--	r = listen(server, 0);
-+	r = listen(server, 1);
-	ok(r == 0, "server: start listening");
-
-	struct sockaddr *sa = (struct sockaddr *)&addr;