test: remove duplicate entry for flaky test

Refs: https://github.com/nodejs/node/blob/5acd42ed9e65/test/parallel/parallel.status#L28-L30
PR-URL: #51654
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>

test/parallel/parallel.status

@@ -7,8 +7,6 @@ prefix parallel
 [true] # This section applies to all platforms
 
 [$system==win32]
-# https://github.com/nodejs/node/issues/49985
-test-runner-watch-mode: PASS, FLAKY
 # https://github.com/nodejs/node/issues/50295
 test-cli-node-options: PASS, FLAKY