If you have AP scores that can represent the same subject as an SAT II then that’s fine. The key is the school policy. If they require it then obviously you have to take them but the gray area is when they are recommended. For STEM majors I would say it’s more important to take them because a strong background in the field is important. For humanity majors as long as you have strong critical thinking and analysis you can get by. Specific subject knowledge is less important. If a school says it would count against you if you don’t submit them then I would make sure they are high scores if you do submit them. But in the end high SAT/ACT will always be better than low scores with subject tests.