As the title says I have edited a mesh my removing some unwanted parts of it, but the removed parts' collisions still remanin in their original place.
I've spent hours and went through tutorials, but the ones I've found only help you ADD collison to a mesh.

In nifskope, I have not found any collision info in the part's NiTriShapeData.
If I have tried editing the mesh in Max, I ended up with no collision on the mesh at all.

You can see the leftover collision box on this picture:

https://lh5.googleusercontent.com/-UdBPrIIb0ZY/UFIe00TTRVI/AAAAAAAABS8/SHzDCTFHam8/s1280/Untitled-1.jpg

Any help on this?

Thanks in advance!

Yeah, that's the unfortunate part of not being able to import/export collision on models, you can't edit it.
Your best bet is to remake the collision from scratch on your new model.

Well, that sounds real bad. Seems like I have a lot of tutorial crawling ahead to achieve that