[llvm] [GlobalIsel][NFC] Ceanup G_EXTRACT_VECTOR_ELT combines (PR #109047)

[Thorsten Schütt via llvm-commits]

================
@@ -160,23 +160,8 @@ bool CombinerHelper::matchExtractVectorElementWithBuildVector(
   //  %extract:_(32) = COPY %arg1(s32)
   //
   //
-  //
-  //  %bv:_(<2 x s32>) = G_BUILD_VECTOR %arg1(s32), %arg2(s32)
----------------
tschuett wrote:

The case is not valid anymore.

https://github.com/llvm/llvm-project/pull/109047