[Keneth]

It's not all that complicated, there's just blocks of code that you need to remove or alter, shouldn't be hard even if you know nothing about scripts.

Here's an example of the code you're looking for:

    camshaker {
      frame=30
      envelope=quake_appear.envlp
      attenuation=0.1
    }

I'm guessing that removing these blocks should do the trick. You could also try changing the attenuation value, I'm not sure which but it probably defines either the peak or the length of the shaking.