external: remove usbstick and hawkbit

These are currently neither used nor tested and should rather be
integrated into labgridhelper. Remove them from the labgrid repository.

Fixes #430

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>

CHANGES.rst

@@ -45,6 +45,7 @@ Breaking changes in 0.3.0
   setup the cleanup job.
 - ``@attr.s(cmp=False)`` is deprecated and all classes have been moved to
   ``@attr.s(eq=False)``, this release requires attrs version 19.2.0
+- The ``HawkbitTestClient`` and ``USBStick`` classes have been removed
 
 Release 0.2.0 (released Jan 4, 2019)
 ------------------------------------

doc/usage.rst

@@ -625,47 +625,3 @@ labgrid contains some command line tools which are used for remote access to
 resources.
 See :doc:`man/client`, :doc:`man/device-config` and :doc:`man/exporter` for
 more information.
-
-USB stick emulation
---------------------
-labgrid makes it posible to use a target as an emulated USB stick, allowing
-upload, modification, plug and unplug events. 
-To use a target as an emulated USB stick, several requirements have to be met:
-
-- OTG support on one of the device USB ports
-- losetup from util-linux
-- mount from util-linux
-- A kernel build with `CONFIG_USB_GADGETFS=m`
-- A network connection to the target to use the :ref:`SSHDriver <conf-sshdriver>` for file uploads
-
-To use USB stick emulation, import :any:`USBStick` from `labgrid.external` and bind
-it to the desired target:
-
-.. code-block:: python
-
-   from labgrid.external import USBStick
-
-   stick = USBStick(target, '/home/')
-
-The above code block creates the stick and uses the `/home` directory to store
-the device images. USBStick images can now be uploaded using the `upload_image`
-method. Once an image is selected, files can be uploaded and retrived using the
-`put_file` and `get_file` methods. The `plug_in` and `plug_out` functions plug
-the emulated USB stick in and out.
-
-hawkBit management API
-----------------------
-
-labgrid provides an interface to the hawkbit management API.
-This allows a labgrid test to create targets, rollouts and manage deployments.
-
-::
-
-   from labgrid.external import HawkbitTestClient
-
-   client = HawkbitTestClient('local', '8080', 'admin', 'admin')
-
-
-The above code connects to a running hawkbit instance on the local computer and
-uses the default credentials to log in. The :any:`HawkbitTestClient` provides various
-helper functions to add targets, define distribution sets and assign targets.