Brian Steinberg Senior TV EditorTwo simple words uttered on Fox News Channel Friday morning gave its audience obvious facts — and may have served to quell a nascent controversy about how the network intends to cover Democratic presidential candidate Joe Biden if he should prove victorious in the 2020 election.After CNN reported Friday morning that it had reviewed “two memos” instructing Fox News talent to “stay away” from calling Democratic candidate Joe Biden the “President-elect” when the