[mod] enable reddit - to have at least one in category social-media

Since digg no longer works, we do nat have a active engine in the social-media
category.  Enable reddit by default to have at least one engine back in this
category.

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/settings.yml

@@ -1137,8 +1137,6 @@ engines:
     engine: reddit
     shortcut: re
     page_size: 25
-    timeout: 10.0
-    disabled: true
 
   # Required dependency: redis
   # - name: myredis