No, I believe the feature the OP described is different and still in effect. The one they got rid of was "File and Suspend". Let's say the husband was the higher wage earner. He reaches FRA, files for SS and his wife files for Spousal in his record. He then suspends his, so he doesn't receive payments and lets his benefit grow till he claims them at age 70. If the wife is entitled to higher benefits on her own record at age 70, she can file for them at that age but in the meantime she can collect Spousal on her husband's record.
Here's the link from which I borrowed the explanation.
https://www.aarp.org/retirement/social-security/questions-answers/ss-couples-file-and-suspend.html
Some economist write a book about it, every clickbait personal finance site picked up on it and the government shut it down for people born after 1/1/1954.
What the OP and I are doing is different. You may still collect Survivor benefits when a spouse dies before you reach age 70 (I was 63 and not collecting on my own record yet). If SS based on your own record is higher you may claim it at any later time. I decided to wait to age 69 and it's been approved.