Use real-valued instead of complex tensors in Wan2.1 RoPE (#11649) #4797

Job	Run time
PyTorch xformers CUDA tests	5m 29s
Setup Torch Pipelines CUDA Slow Tests Matrix	1m 55s
Torch CUDA Tests (schedulers)	5m 5s
PyTorch Compile CUDA tests	3m 17s
Torch CUDA Tests (lora)	13m 37s
Torch CUDA Tests (models)	10m 25s
Torch CUDA Tests (others)	48s
Torch CUDA Tests (single_file)	5m 26s
Examples PyTorch CUDA tests on Ubuntu	42m 15s
Torch Pipelines CUDA Tests (cogvideo)	4m 23s
Torch Pipelines CUDA Tests (cogview4)	2m 59s
Torch Pipelines CUDA Tests (controlnet_flux)	3m 3s
Torch Pipelines CUDA Tests (ddpm)	2m 21s
Torch Pipelines CUDA Tests (controlnet)	13m 57s
Torch Pipelines CUDA Tests (hidream_image)	3m 6s
Torch Pipelines CUDA Tests (controlnet_sd3)	1m 18s
Torch Pipelines CUDA Tests (flux)	4m 15s
Torch Pipelines CUDA Tests (latent_consistency_models)	1m 26s
Torch Pipelines CUDA Tests (marigold)	1m 45s
Torch Pipelines CUDA Tests (hunyuan_video)	4m 3s
Torch Pipelines CUDA Tests (stable_diffusion)	6m 6s
Torch Pipelines CUDA Tests (ltx)	1m 54s
Torch Pipelines CUDA Tests (stable_diffusion_3)	3m 9s
Torch Pipelines CUDA Tests (pixart_alpha)	58s
Torch Pipelines CUDA Tests (stable_diffusion_xl)	5m 12s
Torch Pipelines CUDA Tests (ip_adapters)	39s
Torch Pipelines CUDA Tests (stable_diffusion_2)	3m 19s
Torch Pipelines CUDA Tests (wan)	2m 17s
Torch Pipelines CUDA Tests (stable_video_diffusion)	59s
	2h 35m 26s

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