generate-all-test-cases: don't use cloud-init to install RPMs

Previously cloud-init was used to install necessary packages on the
runner. This would not be practical in the future with other types of
runners, which would not use cloud-init. Install all necessary RPMs by
directly running DNF command on the runner.

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

tools/deploy/gen-test-data/files/run/provision-scripts/deploy.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-set -euxo pipefail
-
-dnf -y install  osbuild \
-                osbuild-selinux \
-                osbuild-ostree \
-                osbuild-composer \
-                golang

tools/deploy/gen-test-data/user-data.yml

@@ -16,5 +16,3 @@ ssh_pwauth: True
 chpasswd:
   expire: False
 sudo: 'ALL=(ALL) NOPASSWD:ALL'
-runcmd:
-  - /run/provision-scripts/deploy.sh