📝 Simplify example for docs for Additional Responses, remove unnecessary else

[adriangb]

No description provided.

[tiangolo]

As this is an example source file for the docs, it would require an update in the source docs at additonal-responses.md that use it too, to highlight the new line.

[adriangb]

Sorry for the delay, done now @tiangolo

[codecov]

Codecov Report

Merging #4693 (bfb331c) into master (1876ebc) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master     #4693   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          532       532           
  Lines        13672     13672           
=========================================
  Hits         13672     13672           

Impacted Files	Coverage Δ
docs_src/additional_responses/tutorial001.py	100.00% <100.00%> (ø)

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[github-actions]

📝 Docs preview for commit bfb331c at: https://6290e3ece1743000a32bc0ef--fastapi.netlify.app

[tiangolo]

Awesome, thank you @adriangb! 🍰 ☕