CoordinateSymmetry has a parameter `rotating_90` that is never used

[Gabriele Bozzola]

As in title. Grepping “rotating” in the llama repository doesn’t produce any result.

Overall, it is unclear (to me at least) what symmetries are supported with multipatch grids.

‌

[Roland Haas]

Thank you. Fixed as git hash a2b11a0 "CoordinateSymmetry: remove unused parameter" of llama