distro: remove old patch on the test_net unit test

distro/pkg/el-7/01-disable-unconnected-net-test.patch

@@ -1 +0,0 @@
-../rpm/01-test_net-disable-udp-send-on-unconnected.patch

distro/pkg/el-7/knot.spec

@@ -22,9 +22,7 @@ Source100:	gpgkey-742FA4E95829B6C5EAC6B85710BB7AF6FEBBD6AB.gpg.asc
 BuildRequires:	gnupg2
 %endif
 
-# Test fails on F30+ aarch/s390x for unknown reason, but it is not neccassary for Knot DNS
-Patch1:		01-disable-unconnected-net-test.patch
-Patch2:		02-revert-AC_PROG_CC.patch
+Patch1:		01-revert-AC_PROG_CC.patch
 
 # Required dependencies
 BuildRequires:	autoconf

distro/pkg/rpm/01-test_net-disable-udp-send-on-unconnected.patch

@@ -1,26 +0,0 @@
-Author: Tomas Krizek <tomas.krizek@nic.cz>
-Date:   2019-02-28 14:26:56 +0100
-
-    test_net: disable UDP send on unconnected
-    
-    This test started to fail with 5.0 kernel in F30+ on aarch64 and s390x.
-    The functionality isn't used by Knot DNS, so disabling this test until
-    the issue is resolved should be safe.
-    
-    Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1675235
-
-diff --git a/tests/contrib/test_net.c b/tests/contrib/test_net.c
-index 0a22abbbc..6ec4bda31 100644
---- a/tests/contrib/test_net.c
-+++ b/tests/contrib/test_net.c
-@@ -310,10 +310,6 @@ static void test_unconnected(void)
- 	r = net_dgram_recv(sock, buffer, buffer_len, TIMEOUT_SHORT);
- 	is_int(KNOT_ETIMEOUT, r, "UDP, receive timeout on unconnected socket");
- 
--	struct sockaddr_storage server_addr = addr_from_socket(server);
--	r = net_dgram_send(sock, buffer, buffer_len, &server_addr);
--	is_int(buffer_len, r, "UDP, send on defined address");
--
- 	close(sock);
- 
- 	// TCP

distro/pkg/rpm/knot.spec

@@ -22,9 +22,6 @@ Source100:	gpgkey-742FA4E95829B6C5EAC6B85710BB7AF6FEBBD6AB.gpg.asc
 BuildRequires:	gnupg2
 %endif
 
-# Test fails on F30+ aarch/s390x for unknown reason, but it is not neccassary for Knot DNS
-Patch1:		01-test_net-disable-udp-send-on-unconnected.patch
-
 # Required dependencies
 BuildRequires:	autoconf
 BuildRequires:	automake