Where can I find the SmoothFollow.js on 5.1?

I’m reading a tutorial of Unity on 5.0.
In its case, there is a “Scripts/SmoothFollow.js” when choose the import packages.

But it is different in my Unity5.1, the “Scripts” is gone.
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I guess it has been integrated to the each of the features’ sections. As I can find 8 .cs files in my “imports packages/Cameras/Scripts” below:

But still, they are not the “SmoothFollow.js”.

So where is it? Or is there any new functions can instead of it?

I think it’s in Effects or Utility. Try importing them all and look?