The Remove Camera Shake filter was not added until Photoshop CC, so it would not appear in Photoshop CS6.
Any reason why you expect to find Camera Shake reduction in CS6 when it's a new feature first introduced in Photoshop CC (the version after CS6)?
Have a read through the new features in Photoshop CC
Thanks for straightening me out. I watched the tutorial and somehow got the mistaken notion that it was available with CS6.