info: remove debug output

Removed some of the infof() calls that were added with the recent
pipeline improvements but they're not useful to the vast majority of
readers and the pipelining seems to fundamentaly work - the debugging
outputs can easily be added there if debugging these functions is needed
again.

lib/pipeline.c

@@ -103,18 +103,11 @@ CURLcode Curl_add_handle_to_pipeline(struct SessionHandle *handle,
 
   pipeline = conn->send_pipe;
 
-  infof(conn->data, "Adding handle: conn: %p\n", (void *)conn);
-  infof(conn->data, "Adding handle: send: %d\n", conn->send_pipe->size);
-  infof(conn->data, "Adding handle: recv: %d\n", conn->recv_pipe->size);
   rc = Curl_addHandleToPipeline(handle, pipeline);
 
   if(pipeline == conn->send_pipe && sendhead != conn->send_pipe->head) {
     /* this is a new one as head, expire it */
     conn->writechannel_inuse = FALSE; /* not in use yet */
-#ifdef DEBUGBUILD
-    infof(conn->data, "%p is at send pipe head!\n",
-          (void *)conn->send_pipe->head->ptr);
-#endif
     Curl_expire(conn->send_pipe->head->ptr, 1);
   }
 

lib/url.c

@@ -2683,7 +2683,6 @@ CURLcode Curl_addHandleToPipeline(struct SessionHandle *data,
 {
   if(!Curl_llist_insert_next(pipeline, pipeline->tail, data))
     return CURLE_OUT_OF_MEMORY;
-  infof(data, "Curl_addHandleToPipeline: length: %d\n", pipeline->size);
   return CURLE_OK;
 }