[clang-tools-extra] [clang-tidy][NFC] Fix incorrect `list.rst` modification by `add_new_check.py` (PR #179297)

[via cfe-commits]

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@@ -182,10 +182,6 @@ Clang-Tidy Checks
    :doc:`bugprone-use-after-move <bugprone/use-after-move>`,
    :doc:`bugprone-virtual-near-miss <bugprone/virtual-near-miss>`, "Yes"
    :doc:`cert-err33-c <cert/err33-c>`,
-   :doc:`cert-err60-cpp <cert/err60-cpp>`,
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zeyi2 wrote:

AFAIK these checks have been refactored to be alias for other checks, so deleting these lines is actually expected (?)

https://github.com/llvm/llvm-project/pull/179297