[gnome-builder] html-preview: remove debug import

[Christian Hergert <chergert src gnome org>]

commit 32d982a1e63c6d40de8d6b126ff6a9744ff38bad
Author: Christian Hergert <christian hergert me>
Date:   Fri Sep 4 03:02:12 2015 -0700

    html-preview: remove debug import

 .../html-preview/html_preview_plugin/__init__.py   |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/plugins/html-preview/html_preview_plugin/__init__.py 
b/plugins/html-preview/html_preview_plugin/__init__.py
index 600fc30..929bb7f 100644
--- a/plugins/html-preview/html_preview_plugin/__init__.py
+++ b/plugins/html-preview/html_preview_plugin/__init__.py
@@ -20,7 +20,6 @@
 #
 
 from gettext import gettext as _
-import markdown2
 
 import gi
 import os