Display called indexers instead of result indexers

src/Jackett/Content/index.html

@@ -214,7 +214,7 @@
 
     <script id="jackett-search-results" type="text/x-handlebars-template">
         <hr/>
-        <p>Your search contains results from: {{#each Indexers}}{{this}}, {{/each}}</p>
+        <p>Your search was done using: {{#each Indexers}}{{this}}, {{/each}}</p>
         <table class="dataTable compact cell-border hover stripe">
             <thead>
                 <tr>

src/Jackett/Controllers/AdminController.cs

@@ -459,9 +459,6 @@ namespace Jackett.Controllers
 
                 lock (results)
                 {
-                    if (searchResults.Count() == 0)
-                        trackers.Remove(indexer);
-
                     foreach (var result in searchResults)
                     {
                         var item = Mapper.Map<TrackerCacheResult>(result);