[clang] [Clang] Remove 3-element vector load and store special handling (PR #104661)

[Shilei Tian via cfe-commits]

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@@ -8026,10 +8026,6 @@ def fhlsl_strict_availability : Flag<["-"], "fhlsl-strict-availability">,
   Group<hlsl_Group>,
   MarshallingInfoFlag<LangOpts<"HLSLStrictAvailability">>;
 
-def fpreserve_vec3_type : Flag<["-"], "fpreserve-vec3-type">,
-  HelpText<"Preserve 3-component vector type">,
-  MarshallingInfoFlag<CodeGenOpts<"PreserveVec3Type">>,
-  ImpliedByAnyOf<[hlsl.KeyPath]>;
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shiltian wrote:

@arsenm Here.

https://github.com/llvm/llvm-project/pull/104661