Revert "Update README with a section about Xcode Cloud"

This reverts commit e174720.

README.md

@@ -206,14 +206,6 @@ Select `SwiftLintPlugin` from the list and add it to the project.
 
 ![](assets/select-swiftlint-plugin.png)
 
-#### Xcode Cloud
-
-The Xcode Cloud environment does not currently support write access, this means that
-caching in SwiftLint is not possible. When using Xcode Cloud you must explicitly
-disable caching by setting an Environment Value `SWIFTLINT_DISABLE_CACHE` to `TRUE`.
-
-More info about custom environment values here: [Xcode Cloud workflow reference](https://developer.apple.com/documentation/xcode/xcode-cloud-workflow-reference#Custom-environment-variables)
-
 #### Swift Package
 
 You can integrate SwiftLint as a Swift Package Manager Plug-in if you're working with