Switch to font-awesome for delete template on add Container

Delete unused icons.  Leave remove.png as older versions of CA utilize
it.
Side note, with deletion of icons, CA integration won't increase
unRaid's size

plugins/dynamix.docker.manager/include/CreateDocker.php

@@ -1199,8 +1199,7 @@ optgroup.title{background-color:#625D5D;color:#FFFFFF;text-align:center;margin-t
             ?>
           </select>
           <? if (!empty($rmadd)) {
-            echo "<a onclick=\"rmTemplate('".addslashes(htmlspecialchars($rmadd))."');\" style=\"cursor:pointer;\"><img src=\"/plugins/dynamix.docker.manager/images/remove.png\" title=\"".htmlspecialchars($rmadd)."\" width=\"30px\"></a>";
-          }?>
+            echo "<a onclick=\"rmTemplate('".addslashes(htmlspecialchars($rmadd))."');\" style=\"cursor:pointer;\"><i class='fa fa-window-close' aria-hidden='true' style='color:maroon; font-size:20px; position:relative;top:5px;' title=\"".htmlspecialchars($rmadd)."\"></i></a>";          }?>
         </td>
       </tr>
       <tr>