test: remove FLAKY status for fixed test

test-worker-message-port-transfer-terminate was fixed in
25447d8 but the status file was not updated to reflect this.

Author: Trott

test/parallel/parallel.status

@@ -15,8 +15,6 @@ test-stream-pipeline-http2: PASS,FLAKY
 test-timers-immediate-queue: PASS,FLAKY
 # https://github.com/nodejs/node/issues/23277
 test-worker-memory: PASS,FLAKY
-# https://github.com/nodejs/node/issues/30846
-test-worker-message-port-transfer-terminate: PASS,FLAKY
 
 [$system==linux]