Remove hardware-specific interactive test.

This test is specific to the hardware design that used to live in this
repository, which has since been renamed to Cynthion. An equivalent
test is now maintained in the Cynthion repository, and can be run with
the 'cynthion selftest' command.

Also remove references in the documentation, and suggest running a bulk
speed test instead (which should work for any LUNA-supported platform).
Do so in the CI too.

ci-scripts/test.sh

@@ -3,5 +3,5 @@ set -e
 usbhub --disable-i2c --hub D9D1 power state --port 3 --reset
 sleep 1s
 source testing-venv/bin/activate
-python3 applets/interactive-test.py
+python3 applets/bulk_speed_test.py
 deactivate

docs/getting_started.rst

@@ -61,13 +61,13 @@ program gateware using Amaranth HDL; so they can be run like any other script:
 
 .. code:: sh
 
-   # With GSG or self-built LUNA hardware connected; we can run the full test,
+   # With GSG or self-built LUNA hardware connected; we can run a speed test,
    # and test both our installation and the attached hardware.
-   python applets/interactive-test.py
+   python applets/bulk_speed_test.py
 
    # Without LUNA hardware connected, we'll only build the applet, to exercise
    # our toolchain.
-   python applets/interactive-test.py --dry-run
+   python applets/bulk_speed_test.py --dry-run
 
 
 The ``apollo`` utility.