Drop replyReadyRead callback

It interferes badly with streamed downloads and is unnecessary for
normal operations.

ghost/ghost.py

@@ -216,13 +216,6 @@ def __init__(self, session, reply, content):
         self._reply = reply
 
 
-def replyReadyRead(reply):
-    if not hasattr(reply, 'data'):
-        reply.data = ''
-
-    reply.data += reply.peek(reply.bytesAvailable())
-
-
 class NetworkAccessManager(QNetworkAccessManager):
     """Subclass QNetworkAccessManager to always cache the reply content
 
@@ -254,7 +247,6 @@ def createRequest(self, operation, request, data):
             request,
             data
         )
-        reply.readyRead.connect(lambda reply=reply: replyReadyRead(reply))
 
         reply.downloadProgress.connect(
             lambda received, total:
@@ -1332,6 +1324,8 @@ def _request_ended(self, reply):
             except AttributeError:
                 content = reply.readAll()
 
+            self.logger.debug('[%s] len %d', str(reply.url()), len(content))
+
             self.http_resources.append(HttpResource(
                 self,
                 reply,