Update challenge-passage.md

[vences]

Summary

Removed the section that mentioned Rate Limiting + challenge action. It seems in contradiction with that section https://developers.cloudflare.com/waf/rate-limiting-rules/parameters/#:~:text=When%20visitors%20pass%20a%20challenge%2C%20their%20corresponding%20request%20counter%20is%20set%20to%20zero.%20When%20visitors%20with%20the%20same%20values%20for%20the%20rule%20characteristics%20make%20enough%20requests%20to%20trigger%20the%20rate%20limiting%20rule%20again%2C%20they%20will%20receive%20a%20new%20challenge.

Documentation checklist

• [x] The documentation style guide has been adhered to.
• [x] If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• [x] Files which have changed name or location have been allocated redirects.

[vences]

PCX-12393

[KimJ15]

👋Hi there, we’re going to close this PR. All PRs prior to August 12 need to be reworked due to the platform migration to Astro.