message: dnn(ocl): drop CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE check
  it is a hint and it should not block kernel execution
diff: @@ -1437,27 +1437,14 @@ bool OCL4DNNConvSpatial<float>::createGEMMLikeConvKernel(int32_t blockM,
  ocl::Program program = compileKernel();
  if (program.ptr())
  {
  - size_t workgroupSize_used;
  ocl::Kernel kernel(kernel_name_.c_str(), program);
  if (kernel.empty())
  return false;
  - workgroupSize_used = kernel.preferedWorkGroupSizeMultiple();
  - if (workgroupSize_used != simd_size)
  - {
  - std::cerr << "OpenCV(ocl4dnn): The OpenCL compiler chose a simd size (" << workgroupSize_used << ") that " << std::endl;
  - std::cerr << " does not equal the size (" << simd_size << ") kernel source required." << std::endl;
  - std::cerr << " Skip this kernel " << kernel_name_ << std::endl;
  - unloadProgram(kernel_name_);
  - return false;
  - }
  - else
  - {
  kernelQueue.push_back(makePtr<kernelConfig>(kernel_name_, &global_size[0], &local_size[0], &workItemOutput[0],
  true, KERNEL_TYPE_GEMM_LIKE));
  return true;
  }
  - }
  else
  return false;
  }
  @@ -1502,27 +1489,14 @@ bool OCL4DNNConvSpatial<float>::createIDLFKernel(int32_t blockWidth,
  ocl::Program program = compileKernel();
  if (program.ptr())
  {
  - size_t workgroupSize_used;
  ocl::Kernel kernel(kernel_name_.c_str(), program);
  if (kernel.empty())
  return false;
  - workgroupSize_used = kernel.preferedWorkGroupSizeMultiple();
  - if (workgroupSize_used != simd_size)
  - {
  - std::cerr << "OpenCV(ocl4dnn): The OpenCL compiler chose a simd size (" << workgroupSize_used << ") that " << std::endl;
  - std::cerr << " does not equal the size (" << simd_size << ") kernel source required." << std::endl;
  - std::cerr << " Skip this kernel " << kernel_name_ << std::endl;
  - unloadProgram(kernel_name_);
  - return false;
  - }
  - else
  - {
  kernelQueue.push_back(makePtr<kernelConfig>(kernel_name_, &global_size[0], &local_size[0], &workItemOutput[0],
  true, KERNEL_TYPE_INTEL_IDLF));
  return true;
  }
  - }
  else
  return false;
  }
  