Test/cases: delete manifest-db-based manifest_tests.sh

Delete the old manifest-db-based test case script, which is no longer
used anywhere.

Signed-off-by: Tomáš Hozza <thozza@redhat.com>

test/cases/manifest_tests.sh

@@ -1,23 +0,0 @@
-#!/bin/bash
-set -euxo pipefail
-# Get OS details.
-source /etc/os-release
-ARCH=$(uname -m)
-DISTRO_CODE="${DISTRO_CODE:-${ID}-${VERSION_ID}}"
-# get manifest-db at the version specified for this arch+distro
-MANIFEST_DB_COMMIT=$(cat Schutzfile | jq -r '.global.dependencies."manifest-db".commit')
-MANIFEST_DB_REPO="https://github.com/osbuild/manifest-db"
-git clone "$MANIFEST_DB_REPO" manifest-db
-cd manifest-db
-git checkout --force "$MANIFEST_DB_COMMIT"
-
-# set the maximum cache size to unlimited
-echo "{}" | sudo osbuild --store /var/lib/osbuild/store --cache-max-size unlimited -
-
-IFS='/' read -r -a array <<< $1
-
-sudo dnf install -y osbuild-tools
-
-# run the tests from the manifest-db for this arch+distro
-echo "Running the osbuild-image-test for arch $ARCH and ditribution $DISTRO_CODE"
-sudo tools/osbuild-image-test --arch=$ARCH --distro=$DISTRO_CODE --image-info-path="$(which osbuild-image-info)" --instance-number="${array[0]}" --total-number-of-instances="${array[1]}"