[llvm] [AMDGPU] Remove some duplicated lines. NFCI. (PR #128029)

[Jay Foad via llvm-commits]

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@@ -375,7 +375,6 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(const TargetMachine &TM,
   setTruncStoreAction(MVT::v16f64, MVT::v16bf16, Expand);
   setTruncStoreAction(MVT::v16f64, MVT::v16f16, Expand);
   setTruncStoreAction(MVT::v16i64, MVT::v16i16, Expand);
-  setTruncStoreAction(MVT::v16i64, MVT::v16i16, Expand);
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jayfoad wrote:

Added by https://reviews.llvm.org/D79960 . I wonder if it was meant to say `v16i32`. @rampitec 

https://github.com/llvm/llvm-project/pull/128029