remove urllib.unquote() step in editor

Fixes bug #950. We need to keep an eye out for media filename problems,
as this line is probably not necessary anymore with changes to the way
Anki handles encoding but could potentially introduce issues.

aqt/editor.py

@@ -449,9 +449,6 @@ class Editor(object):
             txt = self.mungeHTML(txt)
             # misbehaving apps may include a null byte in the text
             txt = txt.replace("\x00", "")
-            # reverse the url quoting we added to get images to display
-            txt = unicode(urllib2.unquote(
-                txt.encode("utf8")), "utf8", "replace")
             self.note.fields[self.currentField] = txt
             if not self.addMode:
                 self.note.flush()