Use BOSH links for temp_enable_v2 property

* avoids redundant configuration

jobs/cloud_controller_ng/spec

@@ -211,6 +211,7 @@ provides:
   - cc.statsd_port
   - cc.enable_statsd_metrics
   - cc.system_hostnames
+  - cc.temporary_enable_v2
   - cc.tls_port
   - cc.uaa.client_timeout
   - cc.internal_route_vip_range

jobs/cloud_controller_worker/spec

@@ -388,10 +388,6 @@ properties:
     default: false
     description: "Enable development features for monitoring and insight"
 
-  cc.temporary_enable_v2:
-    description: "Enable V2 endpoints"
-    default: true
-
   cc.newrelic.license_key:
     default: ~
     description: "The api key for NewRelic"

jobs/cloud_controller_worker/templates/cloud_controller_ng.yml.erb

@@ -128,7 +128,7 @@ db: &db
 
 <% system_domain = p("system_domain") %>
 
-temporary_enable_v2: <%= p("cc.temporary_enable_v2") %>
+temporary_enable_v2: <%= link("cloud_controller_internal").p("cc.temporary_enable_v2") %>
 
 uaa:
   internal_url: <%= "https://#{p("cc.uaa.internal_url")}:#{p("uaa.ssl.port")}" %>

spec/cloud_controller_worker/cloud_controller_worker_spec.rb

@@ -80,10 +80,12 @@ module Test
               'jobs' => {
                 'enable_dynamic_job_priorities' => false
               },
-              'app_log_revision' => true
+              'app_log_revision' => true,
+              'temporary_enable_v2' => true
             }
           }
         end
+
         let(:cloud_controller_internal_link) do
           Link.new(name: 'cloud_controller_internal', properties:, instances: [LinkInstance.new(address: 'default_app_ssh_access')])
         end
@@ -264,17 +266,6 @@ module Test
             template_hash = YAML.safe_load(template.render(manifest_properties, consumes: links))
             expect(template_hash['temporary_enable_v2']).to be(true)
           end
-
-          context 'when explicitly disabled' do
-            before do
-              manifest_properties['cc']['temporary_enable_v2'] = false
-            end
-
-            it 'is false' do
-              template_hash = YAML.safe_load(template.render(manifest_properties, consumes: links))
-              expect(template_hash['temporary_enable_v2']).to be(false)
-            end
-          end
         end
       end
     end