Unused graphics properties for camera transform

[Rik]

2/12/18

Does anyone want to claim these axes graphics properties?

// hidden properties for transformation computation
array_property x_viewtransform h , Matrix (4, 4, 0.0)
array_property x_projectiontransform h , Matrix (4, 4, 0.0)
array_property x_viewporttransform h , Matrix (4, 4, 0.0)
array_property x_normrendertransform h , Matrix (4, 4, 0.0)
array_property x_rendertransform h , Matrix (4, 4, 0.0)

They don't appear to be used and the suggestion has been made to simply
remove them.

Cheers,
Rik