[CI] Use internal-ci/internal-eu cdn

Task: https://mirantis.jira.com/browse/PRODX-41857

Change-Id: I298730c0b40c54207881a5ec47c6dabc165b9280
diff --git a/src/com/mirantis/mk/KaasUtils.groovy b/src/com/mirantis/mk/KaasUtils.groovy
index c6a5651..6efed38 100644
--- a/src/com/mirantis/mk/KaasUtils.groovy
+++ b/src/com/mirantis/mk/KaasUtils.groovy
@@ -533,8 +533,8 @@
     // CDN configuration
     def cdnConfig = [
         mgmt: [
-            openstack:  (proxyConfig['mgmtOffline'] == true) ? 'public-ci' : 'internal-ci',
-            vsphere:  (proxyConfig['mgmtOffline'] == true) ? 'public-ci' : 'internal-eu',
+            openstack: 'internal-ci',
+            vsphere:  'internal-ci',
             aws: 'public-ci',
             equinix: 'public-ci',
             azure: 'public-ci',
@@ -547,8 +547,7 @@
 
     if (openstackIMC == 'eu') {
         // use internal-eu because on internal-ci with eu cloud image pull takes much time
-        def cdnRegion = (proxyConfig['mgmtOffline'] == true) ? 'public-ci' : 'internal-eu'
-        common.infoMsg("eu-demo was triggered, force switching CDN region to ${cdnRegion}")
+        def cdnRegion = 'internal-eu'
         cdnConfig['mgmt']['openstack'] = cdnRegion
     }