Remove spurious newline

Apparently I just removed the spaces instead...

Signed-off-by: Johannes Löthberg <johannes@kyriasis.com>

synapse/http/client.py

@@ -405,7 +405,6 @@ class SpiderEndpointFactory(object):
         )
 
 
-
 class SpiderHttpClient(SimpleHttpClient):
     """
     Separate HTTP client for spidering arbitrary URLs.