I think it's important to understand the difference between removing something and not making it.
Saints Row 3 is not Saints Row 2, and therefore layered clothing (to pick a popular example) was not removed; it was not included to begin with.
The Sims 4 did not have support for pools removed, because it never had support for pools. However, as I understand it, it also has basically nothing that The Sims 3 didn't have, which renders it pointless as a product. You do have to have a reason for people to want your game.
Saints Row 3 had a lot of stuff that 2 didn't. Gat Out of Hell has something new: a new story, starring Gat and Kinzie.
On the other hand, Sony removed Linux support from the PS3 in a system update. If you're looking for an example, there's a good one for you.