Revert "Normalize EOL symbol for the platform docs (#55689)"

[mshustov]

This reverts commit 1ea175e.

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• This was checked for cross-browser compatibility, including a check against IE11
• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• This was checked for keyboard-only and screenreader accessibility

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• This was checked for breaking API changes and was labeled appropriately
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[kibanamachine]

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• continuous-integration/kibana-ci/pull-request
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@elasticmachine merge upstream