Removed lighter.

Author: jcs090218

helm-file-preview.el

@@ -159,7 +159,6 @@ ARGS : rest of the arguments."
 ;;;###autoload
 (define-minor-mode helm-file-preview-mode
   "Minor mode 'helm-file-preview-mode'."
-  :lighter " HelmFilePrev"
   :global t
   :require 'helm-file-preview
   :group 'helm-file-preview