Remove unnecessary list() calls before/after sorted()

[chrisyeh96]

Python's built-in sorted() function always returns a list. Therefore, there is no need to call list(sorted(...)) or sorted(list(...)). Simply calling sorted(...) is sufficient.

[pytorch-bot]

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[NicolasHug]

Thanks for the PR @chrisyeh96 . You're probably right that these calls to list() aren't needed. They're don't really add any cost either and aren't in a hot path, so I'm inclined to just leave them there. These parts of the code base (datasets) aren't actively developed