tests/functional: remove unused kernel_command_line

The Alpine test boots from the CDROM so we don't --append a command
line. Drop the unused code.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250108121054.1126164-22-alex.bennee@linaro.org>
1 file changed