message: [Docs] Update iOS selective registration docs
diff: @@ -190,8 +190,6 @@ increase you see in your own app is similar, and if it's larger, look at the
  "Other Linker Flags" used in the Simple Xcode project settings to strip the
  executable.
  -After that, you can manually look at modifying the list of kernels
  -included in tensorflow/contrib/makefile/tf_op_files.txt to reduce the number of
  -implementations to the ones you're actually using in your own model. We're
  -hoping to automate this step in the future, but for now manually removing them
  -is the best approach.
  +For further optimization, please refer to the "Optimization" section at
  +[tensorflow/contrib/makefile](https://github.com/tensorflow/tensorflow/tree/master/tensorflow/contrib/makefile)
  +from earlier.
  