Release note for python deprecated API removal

Documentation/release/dev/deprecated-python-API-removal.md

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+## Deprecated python API removal
+
+Several deprecated python API that have been around for a few years are now gone.
+This include :
+
+- `paraview.simple.CreateScalarBar()`, replaced by `paraview.simple.GetScalarBar()`.
+- `paraview.simple.WriteAnimation()`, replaced by `paraview.simple.SaveAnimation()`.
+- `paraview.simple.WriteImage()`, replaced by `paraview.simple.SaveScreenshot()`.
+- `paraview.simple.ImportCinema()`, no longer supported since 5.9.
+- `paraview.compatibility.GetVersion().GetVersion()`, because of float comparison issue.
+
+Other deprecated behaviors have been removed :
+
+- `paraview.compatibility.GetVersion()` cannot be compared with float values anymore.
+- In `paraview.simple.CreateView()`, removed support for positional argument `detachedFromLayout`.
+- In `paraview.simple.SaveScreenshot()`, removed support for optional argument `ImageQuality`.
+- In `paraview.simple.SaveAnimation()`, removed support for optional argument `DisconnectAndSave` and `ImageQuality`.