[clang] [Clang][Interp] Fix the location of uninitialized base warning (PR #100761)

[Timm Baeder via cfe-commits]

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@@ -14,33 +14,29 @@ struct DelBase {
   constexpr DelBase() = delete; // expected-note {{'DelBase' has been explicitly marked deleted here}}
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tbaederr wrote:

The second bullet point of the comment at the top of the file is obsolete now.

https://github.com/llvm/llvm-project/pull/100761