Revert diego patch

This reverts the following two commits:

commit 678cdae
Author: Colin Saliceti <c.saliceti@gmail.com>
Date:   Mon Mar 20 10:10:28 2017 +0000

    Use diego-patched release in jobs

    We only require the updated release in 2 jobs to fix the ssh upload
    issue:

    * ssh_proxy: the ssh connection is proxied through it
    * file_server: it serves the diego_ssh binary that is downloaded when
    apps are staged

    This should be reverted when diego is officially updated with the fix.

commit b83c5c4
Author: Colin Saliceti <c.saliceti@gmail.com>
Date:   Mon Mar 20 10:10:21 2017 +0000

    Add diego-patched release

    This release is based on diego 1.8.1 and has an updated gloang crypto
    library. This fixes issue:
    https://github.com/cloudfoundry/diego-ssh/issues/31

manifests/cf-manifest/manifest/000-base-cf-deployment.yml

@@ -13,10 +13,6 @@ releases:
     version: 1.8.1
     url: https://bosh.io/d/github.com/cloudfoundry/diego-release?v=1.8.1
     sha1: a8c9fdecf59a1fceb2837ac0cfbde6a939427adb
-  - name: diego-patched
-    version: 1.8.1
-    url: https://s3-eu-west-1.amazonaws.com/gds-paas-build-releases/diego-patched-1.8.1.tgz
-    sha1: 26f7599cfe41db8ecd335f19d7c8337cd2ac20e2
   - name: garden-runc
     version: 1.2.0
     url: https://bosh.io/d/github.com/cloudfoundry/garden-runc-release?v=1.2.0

manifests/cf-manifest/manifest/010-cf-jobs.yml

@@ -480,11 +480,11 @@ jobs:
       - name: datadog-consul-agent-client
         release: datadog-for-cloudfoundry
       - name: ssh_proxy
-        release: diego-patched
+        release: diego
       - name: metron_agent
         release: cf
       - name: file_server
-        release: diego-patched
+        release: diego
       - name: cfdot
         release: diego
     instances: 2