code: public void deleteLdapGroupLink(Object groupIdOrPath, String cn, String provider) throws GitLabApiException {
  
          if (cn == null || cn.trim().isEmpty()) {
              throw new RuntimeException("cn cannot be null or empty");
          }
  
          if (provider == null || provider.trim().isEmpty()) {
              throw new RuntimeException("LDAP provider cannot be null or empty");
          }
  
          delete(Response.Status.OK, null, "groups", getGroupIdOrPath(groupIdOrPath), "ldap_group_links", provider, cn);
      }
docs: Deletes an LDAP group link for a specific LDAP provider.
  
  <pre><code>GitLab Endpoint: DELETE /groups/:id/ldap_group_links/:provider/:cn</code></pre>
  
  @param groupIdOrPath the group ID, path of the group, or a Group instance holding the group ID or path
  @param cn the CN of the LDAP group link to delete
  @param provider the name of the LDAP provider
  @throws GitLabApiException if any exception occurs