docs simplification?

docs/index.rst

@@ -52,20 +52,6 @@ and display as a false-color movie.
         time_stop=astropy.time.Time("2017-02-11T05:00"),
     )
 
-    # Crop the observation so readthedocs doesn't run out of memory.
-    # This is probably unnecessary on your machine
-    index = {obs.axis_wavelength: slice(75, 150)}
-    obs = dataclasses.replace(
-        obs,
-        inputs=na.TemporalSpectralPositionalVectorArray(
-            time=obs.inputs.time,
-            wavelength=obs.inputs.wavelength[index],
-            position=obs.inputs.position[index],
-        ),
-        outputs=obs.outputs[index],
-    )
-
-
     # Calculate the mean rest wavelength of the
     # brightest spectral line
     wavelength_center = obs.wavelength_center.ndarray.mean()