Remove outdated Fedora instructions and update ovirt rpm folders

Signed-off-by: Albert Esteve <aesteve@redhat.com>

README.adoc

@@ -60,6 +60,7 @@ Install the following system components:
 - ovirt-ansible-roles >= 1.2.0
 - ovirt-imageio-daemon >= 2.0.6
 - ovirt-engine-metrics (optional)
+- ovirt-provider-ovn (optional)
 - python3-ovirt-engine-sdk4 (optional)
 - ansible-lint / python3-ansible-lint (optional)
 - python3-flake8 / pyflakes (optional)
@@ -100,14 +101,6 @@ There are 2 programs which provide 'javac'.
 Enter to keep the current selection[+], or type selection number: 2
 
 ```
-- Maven >= 3.5 is required, download and extract if not installed using
-distribution package management, and add to PATH.
-
-Fedora 30
-```console
-$ sudo dnf module install maven
-```
-
 - verify your `mvn` version:
 ```console
 $ mvn -v | head -1
@@ -130,17 +123,6 @@ is to install following packages:
 - ovirt-engine-wildfly
 - ovirt-engine-wildfly-overlay
 
-Both packages can be installed from ovirt-master-snapshot-static repository:
-
-  [ovirt-master-snapshot-static]
-  name=Latest oVirt master additional nightly snapshot
-  baseurl=http://resources.ovirt.org/pub/ovirt-master-snapshot-static/rpm/@DIST@$releasever/
-  enabled=1
-  skip_if_unavailable=1
-  gpgcheck=0
-
-Please replace `@DIST@` with `fc` for Fedora or `el` for Centos/RHEL.
-
 Alternatively, repository list can be updated.
 
 - For CentOS Stream 8 use:
@@ -155,46 +137,6 @@ OVN/OVS is an optional dependency. If you want to use it, check the requirements
 ovirt-engine.spec.in file for a list of packages. Otherwise, you should reply 'No'
 when asked about it by engine-setup.
 
-For Fedora prerequisites installation, following commands can be applied:
-
-- Enable oVirt packages for Fedora
-+
-  $ sudo dnf copr enable -y nsoffer/ioprocess-preview
-  $ sudo dnf copr enable -y nsoffer/ovirt-imageio-preview
-
-- Install additional packages
-+
-  $ sudo dnf install -y $(cat automation/check-patch.packages)
-
-Install additional packages for Fedora:
-
-  $ sudo yum install -y \
-        ansible-core \
-        ansible-runner \
-        bind-utils \
-        libxml2-python \
-        m2crypto \
-        mailcap \
-        openssl \
-        ovirt-ansible-collection \
-        ovirt-engine-metrics \
-        ovirt-engine-wildfly \
-        ovirt-engine-wildfly-overlay \
-        ovirt-setup-lib \
-        python3-daemon \
-        python3-dateutil \
-        python3-jinja2 \
-        python-ovirt-engine-sdk4 \
-        unzip
-
-Optional packages for Fedora:
-
-  $ sudo yum install -y \
-        python3-docker-py \
-        python3-flake8 \
-        python3-isort \
-        python3-pycodestyle
-
 ==== System settings
 
 Build locales requires at least 10240 file descriptors, create the
@@ -235,7 +177,7 @@ better to have VM's starting allocation and maximum allocation set to the same v
 
 Initialize PostgreSQL configuration files:
 
-  $ sudo postgresql-setup --initdb --unit postgresql # fedora
+  $ sudo postgresql-setup --initdb --unit postgresql
 
 Configure PostgreSQL to accept user and password: