Update UCP relnotes

remove beta heading and known issues section, removed a deprecated issue per @pkennedyr

ee/ucp/release-notes.md

@@ -25,41 +25,6 @@ upgrade your installation to the latest release.
 # Version 3.2
 (2019-7-10)
 
-### Known issues
-
-- Running the engine with `"selinux-enabled": true` and installing UCP returns the following error:
-    ```
-    time="2019-05-22T00:27:54Z" level=fatal msg="the following required ports are blocked on your host: 179, 443, 2376, 6443, 6444, 10250, 12376, 12378 - 12386.  Check your firewall settings"
-    ```
-    This is due to an updated selinux context.
-    Versions affected: 18.09 or 19.03-rc3 engine on Centos 7.6 with selinux enabled.
-    Until `container-selinux-2.99` is available for CentOS7, current workaround on CentOS7 is to downgrade to `container-selinux-2.74`:
-    ```
-    $ sudo yum downgrade container-selinux-2.74-1.el7
-    ```
-- Attempts to deploy local PV fail with regular UCP configuration unless PV binder SA is bound to cluster admin role.
-    - Workaround: Create a `ClusterRoleBinding` that binds the `persistent-volume-binder` serviceaccount
-   to a `cluster-admin` `ClusterRole`, as shown in the following example:
-       ```
-       apiVersion: rbac.authorization.k8s.io/v1
-       kind: ClusterRoleBinding
-       metadata:
-         labels:
-           subjectName: kube-system-persistent-volume-binder
-         name: kube-system-persistent-volume-binder:cluster-admin
-       roleRef:
-         apiGroup: rbac.authorization.k8s.io
-         kind: ClusterRole
-         name: cluster-admin
-       subjects:
-       - kind: ServiceAccount
-         name: persistent-volume-binder
-         namespace: kube-system
-       ```
-
-# Version 3.2.0-beta
-(2019-5-16)
-
 ## New features
 
 ### Group Managed Service Accounts (gMSA)
@@ -125,8 +90,6 @@ The following features are deprecated in UCP 3.2:
     ```
     docker node update --label-add com.docker.ucpagent-pause=true <NODE>
     ```
-- SLES12 is deprecated from Docker Enterprise 3.0, and EOL of SLES12 as an operating system will occur 
-in Docker Enterprise 3.1. Upgrade to SLES15 for continued support on Docker Enterprise.
 - Windows 2016 is formally deprecated from Docker Enterprise 3.0. Only non-overlay networks are supported 
 on Windows 2016 in Docker Enterprise 3.0. EOL of Windows Server 2016 support will occur in Docker 
 Enterprise 3.1. Upgrade to Windows Server 2019 for continued support on Docker Enterprise.