chore(settings): remove MEDIA_ROOT setting

https://docs.djangoproject.com/en/1.9/ref/settings/#media-root it already defaults to empty

Author: helgi

rootfs/deis/settings.py

@@ -47,10 +47,6 @@
 # If you set this to False, Django will not use timezone-aware datetimes.
 USE_TZ = True
 
-# Absolute filesystem path to the directory that will hold user-uploaded files.
-# Example: "/var/www/example.com/media/"
-MEDIA_ROOT = ''
-
 # URL that handles the media served from MEDIA_ROOT. Make sure to use a
 # trailing slash.
 # Examples: "http://example.com/media/", "http://media.example.com/"