Fix LDAP service update error

When a service is enabled, it must be disabled prior
to changing the service type, e.g change from OpenLDAP
to ActiveDirectory.

- Add check to determine if a service is already enabled
- Make two calls if service is already enabled. First to
  disable existing service. Second to enable updated
  service
- Remove toast message for ssl check and replace with
  error message which also keeps submit button disabled
  if the regex pattern is not met

Tested:
- Edge
- Safari
- Firefox
- Chrome
- IE 11

Signed-off-by: Derick Montague <derick.montague@ibm.com>
Change-Id: I195eeb7d1cd3621681c18f4dd9aa4414eb079c09
diff --git a/app/common/directives/ldap-user-roles.html b/app/common/directives/ldap-user-roles.html
index e250772..22a9ffb 100644
--- a/app/common/directives/ldap-user-roles.html
+++ b/app/common/directives/ldap-user-roles.html
@@ -84,7 +84,7 @@
   <!-- LDAP Disabled Role Groups Table Row -->
   <div class="empty__logs" ng-if="roleGroups.length < 1 || !enabled">
     <p
-      ng-if="roleGroups.length < 1 && roleGroupType === 'ad' ||  roleGroupType === 'ldap'"
+      ng-if="!roleGroups.length && roleGroupType"
     >
       No role groups have been created yet.
     </p>