• Remove viewMatrix

    Users are supposed to use `view.transform.inverse.matrix`
    
    The view matrix was incorrect anyway, we had forgotten to invert it, but that was okay since we transposed it by accident (due to euclid's use of the row-vector convention), and for 3DOF devices these transforms are mostly rotations so  transposing instead of inverting doesn't lead to visible effects.
    Manishearth committed Apr 4, 2019