Remove no longer used pipe implementation

src/clj_kafka/consumer/zk.clj

@@ -1,7 +1,7 @@
 (ns clj-kafka.consumer.zk
   (:import [kafka.consumer ConsumerConfig Consumer KafkaStream]
            [kafka.javaapi.consumer ConsumerConnector])
-  (:use [clj-kafka.core :only (as-properties to-clojure with-resource pipe)])
+  (:use [clj-kafka.core :only (as-properties to-clojure with-resource)])
   (:require [zookeeper :as zk]))
 
 (defn consumer

src/clj_kafka/core.clj

@@ -61,22 +61,3 @@
   TopicMetadataResponse
   (to-clojure [x]
     (map to-clojure (.topicsMetadata x))))
-
-(defn pipe
-  "Returns a vector containing a sequence that will read from the
-   queue, and a function that inserts items into the queue.
-
-   Source: http://clj-me.cgrand.net/2010/04/02/pipe-dreams-are-not-necessarily-made-of-promises/"
-  ([] (pipe 100))
-  ([size]
-   (let [q (java.util.concurrent.LinkedBlockingQueue. ^int size)
-         EOQ (Object.)
-         NIL (Object.)
-         s (fn queue-seq [] (lazy-seq
-                              (let [x (.take q)]
-                                (when-not (= EOQ x)
-                                  (cons (when-not (= NIL x) x)
-                                        (queue-seq))))))]
-     [(s) (fn queue-put
-            ([] (.put q EOQ))
-            ([x] (.put q (or x NIL))))])))