disable fp32 sliding window kernel

mindspore/lite/src/runtime/kernel/arm/fp32/convolution.cc

@@ -258,7 +258,8 @@ kernel::LiteKernel *CpuConvFp32KernelCreator(const std::vector<lite::tensor::Ten
     kernel =
       new (std::nothrow) kernel::ConvolutionWinogradCPUKernel(op_parameter, inputs, outputs, ctx, primitive, out_unit);
   } else if (use_sw) {
-    kernel = new (std::nothrow) kernel::ConvolutionSWCPUKernel(op_parameter, inputs, outputs, ctx, primitive);
+    // kernel = new (std::nothrow) kernel::ConvolutionSWCPUKernel(op_parameter, inputs, outputs, ctx, primitive);
+    kernel = new (std::nothrow) kernel::ConvolutionCPUKernel(op_parameter, inputs, outputs, ctx, primitive);
   } else {
     kernel = new (std::nothrow) kernel::ConvolutionCPUKernel(op_parameter, inputs, outputs, ctx, primitive);
   }