Revert "test: mark empty udp tests flaky on OS X"

This reverts commit 24a4f76.

PR-URL: #32489
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>

test/parallel/parallel.status

@@ -29,13 +29,6 @@ test-worker-message-port-transfer-terminate: PASS,FLAKY
 [$system==linux]
 
 [$system==macos]
-# https://github.com/nodejs/node/issues/30030
-test-dgram-connect-send-empty-buffer: PASS,FLAKY
-test-dgram-connect-send-empty-array: PASS,FLAKY
-test-dgram-connect-send-empty-packet: PASS,FLAKY
-test-dgram-send-empty-array: PASS,FLAKY
-test-dgram-send-empty-buffer: PASS,FLAKY
-test-dgram-send-empty-packet: PASS,FLAKY
 
 [$arch==arm || $arch==arm64]
 # https://github.com/nodejs/node/issues/26610