[llvm] [support][nfc] MD5: Undef macros after use (PR #132132)

[Jakub Kuderski via llvm-commits]

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@@ -296,3 +296,11 @@ MD5::MD5Result MD5::hash(ArrayRef<uint8_t> Data) {
 
   return Res;
 }
+
+#undef F
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kuhar wrote:

+1, but I don't think this is a blocker

https://github.com/llvm/llvm-project/pull/132132