tests/functional: drop 'tesseract_available' helper

Platforms we target have new enough tesseract that it suffices to merely
check if the binary exists.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20241217155953.3950506-7-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 files changed