fix: Remove unnecessary error return when all components are erased from a flow

[Cristhianzl]

This PR fixes an issue where an unnecessary error was being returned when all components were removed from a flow. The error handling logic has been adjusted to ensure that removing all components does not trigger an error response.

🔧 (use-save-flow.ts): remove unnecessary error data setting when saving an empty flow to improve code readability and maintainability

[github-actions]

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_{Last Modified at 19 Aug 24 19:10 UTC}

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[anovazzi1]

lgtm