Revert incorrect line in deterministic sampler (#974)

* Revert incorrect line in deterministic sampler

* minor version bump

Author: pzharrington

physicsnemo/__init__.py

@@ -19,4 +19,4 @@
 from .models.meta import ModelMetaData
 from .models.module import Module
 
-__version__ = "1.1.0"
+__version__ = "1.1.1"

physicsnemo/utils/generative/deterministic_sampler.py

@@ -334,8 +334,7 @@ def deterministic_sampler(
                 ).to(torch.float64)
             d_prime = (
                 sigma_deriv(t_prime) / sigma(t_prime) + s_deriv(t_prime) / s(t_prime)
-            ) * x_prime
-            -sigma_deriv(t_prime) * s(t_prime) / sigma(t_prime) * denoised
+            ) * x_prime - sigma_deriv(t_prime) * s(t_prime) / sigma(t_prime) * denoised
             x_next = x_hat + h * (
                 (1 - 1 / (2 * alpha)) * d_cur + 1 / (2 * alpha) * d_prime
             )