This contains the following changes:
* Remove the subdirectories for src/include
* Drop the include directory logic from the build
(not needed anymore with above, and it was also broken when
the synaptics driver was not enabled)
The only API user currently seems to be the examples. fprintd has its
own storage and that will be a good idea in general.
So deprecate the API, we'll need to find a different solution for the
examples eventually.
The function was committed by accident as part of commit d18e1053
(lib: Add a way to name timeouts). It is not used anywhere and
fpi_timeout_cancel_all_for_dev exists, is exported and used and serves
the same purpose.
Benjamin Berg