wirking on global error display

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/Components/UserSelector.svelte

@@ -5,7 +5,6 @@
 
     import Autocomplete       from './Autocomplete.svelte';
 
-    let error = $state(null);
     let {
         getCandidates = async text => {},
         heading       = t('add_object',{object:t('user')}),
@@ -25,9 +24,6 @@
     let sortedUsers = $derived.by(() => Object.values(users).sort((a, b) => a.name.localeCompare(b.name)));
 </script>
 
-{#if error}
-<span class="error">{error}</span>
-{/if}
 <table>
     <tbody>
     {#each sortedUsers as usr,idx}