[clang-tools-extra] [clang-tidy] Fix false positive in readability-non-const-parameter for atomic builtins (PR #221951)

[Björn Svensson via cfe-commits]

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@@ -9,3 +9,40 @@ int f(p)
 {
     return *p;
 }
+
+// The 'expected' operand of a compare-exchange receives the old value when the
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bjosv wrote:

Ok, yes, they might be an extra maintenance burden. Removed them now, thanks

https://github.com/llvm/llvm-project/pull/221951