Update pipeline_onnx_stable_diffusion.py to remove float64

init_noise_sigma was being set as float64 before multiplying with latents, which changed latents into float64 too, which caused errors with onnxruntime since the latter wanted float16.

Author: lostdisc

src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py

@@ -383,7 +383,7 @@ def __call__(
         # set timesteps
         self.scheduler.set_timesteps(num_inference_steps)
 
-        latents = latents * np.float64(self.scheduler.init_noise_sigma)
+        latents = latents * self.scheduler.init_noise_sigma
 
         # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
         # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.