Revert splat changes to AbstractUninstall

[dduugg]

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This reverts the splat changes to #14769 which potentially caused issues in Homebrew/homebrew-cask-drivers#3341 (comment)

Since we now suppress splat errors, the above changes aren't needed to maintain type checking in the file.

[BrewTestBot]

Review period will end on 2023-03-08 at 14:50:33 UTC.

[BrewTestBot]

Review period skipped due to critical label.

[MikeMcQuaid]

Thanks @dduugg!