A (stupid) question, re-install OS-X

Do you really need to re-install to do this? I just deleted them off mine. Along with GarageBand and other apps I never use. Google will tell you where to find the files.

I removed all the languages and printer drivers I knew I would never need. Not been a problem.

Take a look at the stickies as there are full step-by-step directions in how to do this. Clayj provided wonderful guidance for this. When I got my MBA I followed the steps and had great success. With the SSD and its limited HD space it is a good idea to reinstall the OS and get rid of stuff you know you won't want or need. By reinstalling the OS you can do it to customize the way you want your machine, and by reinstalling you can be sure of not having any excess stuff still cluttering up everything. By simply deleting the printers and languages you may still be leaving other remnants behind so you're still not going to free up as much space as you can when reinstalling the OS with a custom setup.

This is what you are looking for:

https://forums.macrumors.com/threads/427768/