remove astropy import and yapf fix

Author: MikeSullivan7

mantidimaging/gui/windows/live_viewer/model.py

@@ -36,7 +36,7 @@ def __init__(self, image_list: list[Image_Data] | None):
                     with fits.open(image_list[0].image_path.__str__()) as fit:
                         sample = fit[0].data
                     arrays = [image_data.delayed_array for image_data in image_list]
-                    lazy_arrays =[dask.array.from_delayed(x, shape=sample.shape, dtype=sample.dtype) for x in arrays]
+                    lazy_arrays = [dask.array.from_delayed(x, shape=sample.shape, dtype=sample.dtype) for x in arrays]
                     self.delayed_stack = dask.array.stack(lazy_arrays)
 
     @property

mantidimaging/gui/windows/live_viewer/presenter.py

@@ -9,7 +9,6 @@
 import numpy as np
 
 from imagecodecs._deflate import DeflateError
-from astropy.io import fits
 
 from mantidimaging.gui.mvp_base import BasePresenter
 from mantidimaging.gui.windows.live_viewer.model import LiveViewerWindowModel, Image_Data