fix another error on s390x

Signed-off-by: Tung D. Le <[email protected]>

Author: tungld

src/Accelerators/NNPA/Conversion/ZHighToZLow/ZHighToZLow.cpp

@@ -688,7 +688,6 @@ struct ZHighToZLowQuantizedStickOpLowering : public ConversionPattern {
     ZMemRefType zMemRefType =
         convertZTensorToMemRefType(*op->result_type_begin());
 
-    Type si64Ty = rewriter.getIntegerType(64, true);
     Type i8Ty = rewriter.getIntegerType(8);
     Type f32Ty = rewriter.getF32Type();
     MemRefType scalarF32MemRefTy = MemRefType::get({}, f32Ty);

test/mlir/accelerators/nnpa/transform/zlow-stick-unstick-expansion.mlir

@@ -1,4 +1,4 @@
-// RUN: onnx-mlir-opt --march=z16 --maccel=NNPA --zlow-stick-expansion %s -split-input-file | FileCheck %s
+// RUN: onnx-mlir-opt --march=z16 --maccel=NNPA --zlow-stick-expansion --disable-memref-prefetch=false %s -split-input-file | FileCheck %s
 
 // -----