[FilesTrash] Remove empty current directory check for empty-trash cmd

The check for whether the current directory is empty before emptying
Trash was incorrect as the state of the current directory should
make no difference to the emptying action. Remove this check.

The "empty trash?" dialog will continue to be shown, even if there are
no files in Trash.

Bug: b/284362857
Change-Id: Ia3ba2589450af506f7616e44d3731bb375d488a1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4569974
Commit-Queue: Ben Reich <benreich@chromium.org>
Reviewed-by: Ben Reich <benreich@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1150172}

ui/file_manager/file_manager/foreground/js/file_manager_commands.js

@@ -1485,11 +1485,6 @@ CommandHandler
  */
 CommandHandler.COMMANDS_['empty-trash'] = new (class extends FilesCommand {
   execute(event, fileManager) {
-    const numEntries = fileManager.directoryModel.getFileList().length;
-    if (numEntries === 0) {
-      return;
-    }
-
     fileManager.ui.emptyTrashConfirmDialog.showWithTitle(
         str('CONFIRM_EMPTY_TRASH_TITLE'), str('CONFIRM_EMPTY_TRASH_DESC'),
         () => {