Check the school website. Columbia U, for example, has evolved recently from requiring both the written section and subject tests, to not requiring either:
They clearly state that you are not required to submit them and “you will not be at a disadvantage if you don’t.”
The impression is that if you took the subject tests and had extraordinary scores and wanted to send them, you can. As they say, “we will accept your results should you choose to send them.”
I would interpret that as being entirely up to the candidate.
At our admissions meeting with the director at Columbia (we two among 100s,) he made it very clear that CU was moving away from total College Board obsequience. We attended the general info session, the Science Day info session, and the URM session–that message was consistent.
That was also my take away from several other college/uni info sessions.