[MSLITE][Develop] fix bug of arm fp16 cpu op: deconv depthwise

mindspore/lite/src/runtime/kernel/arm/fp16/deconvolution_depthwise_fp16.cc

@@ -243,6 +243,4 @@ kernel::LiteKernel *CpuDeconvDwFp16KernelCreator(const std::vector<lite::Tensor
   }
   return kernel;
 }
-
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_DeDepthwiseConv2D, CpuDeconvDwFp16KernelCreator)
 }  // namespace mindspore::kernel