This driver should be compiled in kernel it self or it is completaly
broken. Either way just drop it.

Master id deployed to dragons and there will be no point of deploying it
to sloths. It is question how to make this change more general across
forks and merges but let's ignore that for now.

Previous implementation was just wrong lets face it.

This reverts commit 4ac86b03.

This is better idea as having #!/bin/bash -e is fragile. Anyone can run
this script with bash -x file and that way unintentionally disable -e
flag.

On server is currently used invalid configuration. This commit can be
reverted after merge to master and configuration file update.

Until now it was called somewhat not systematically before every build
and after OpenWRT patching.