Drop extra tools

```
The size of the tarball is 2302924942 bytes.
The maximum size is 1500MB, cannot continue.
```
Not sure this will be small enough.
I don't want to go from `texlive-full` to specific packages I need, because then this box is not reusable for others.
(Exception: cutting -doc packages would be OK)

Also, if Wercker boxes are stored as tarballs, I'm not sure this using this box would end up any any faster than running `apt-get` during specific project's build, especially if the project only installs what it needs...