[CodeGen] Remove extraneous ArrayRef (NFC) (#90423)

We don't need to explicitly create an instance of ArrayRef here
because getIndexedOffsetInType takes ArrayRef, and ArrayRef can be
implicitly constructed from a C array.

Author: kazutakahirata

llvm/lib/CodeGen/InterleavedLoadCombinePass.cpp

@@ -890,7 +890,7 @@ struct VectorInfo {
           ConstantInt::get(Type::getInt32Ty(LI->getContext()), 0),
           ConstantInt::get(Type::getInt32Ty(LI->getContext()), i),
       };
-      int64_t Ofs = DL.getIndexedOffsetInType(Result.VTy, ArrayRef(Idx, 2));
+      int64_t Ofs = DL.getIndexedOffsetInType(Result.VTy, Idx);
       Result.EI[i] = ElementInfo(Offset + Ofs, i == 0 ? LI : nullptr);
     }