diff --git a/backend/src/app/util/transit.clj b/backend/src/app/util/transit.clj
deleted file mode 100644
index 5cb9c1865..000000000
--- a/backend/src/app/util/transit.clj
+++ /dev/null
@@ -1,179 +0,0 @@
-;; This Source Code Form is subject to the terms of the Mozilla Public
-;; License, v. 2.0. If a copy of the MPL was not distributed with this
-;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
-;;
-;; Copyright (c) KALEIDOS INC
-
-(ns app.util.transit
-  (:require
-   [app.common.geom.matrix :as gmt]
-   [app.common.geom.point :as gpt]
-   [cognitect.transit :as t]
-   [linked.core :as lk])
-  (:import
-   app.common.geom.matrix.Matrix
-   app.common.geom.point.Point
-   java.io.ByteArrayInputStream
-   java.io.ByteArrayOutputStream
-   java.io.File
-   java.time.Instant
-   java.time.OffsetDateTime
-   linked.set.LinkedSet))
-
-;; --- Handlers
-
-(def ^:private file-write-handler
-  (t/write-handler
-   (constantly "file")
-   (fn [v] (str v))))
-
-;; --- GEOM
-
-(def point-write-handler
-  (t/write-handler
-   (constantly "point")
-   (fn [v] (into {} v))))
-
-(def point-read-handler
-  (t/read-handler gpt/map->Point))
-
-(def matrix-write-handler
-  (t/write-handler
-   (constantly "matrix")
-   (fn [v] (into {} v))))
-
-(def matrix-read-handler
-  (t/read-handler gmt/map->Matrix))
-
-;; --- Ordered Set
-
-(def ordered-set-write-handler
-  (t/write-handler
-   (constantly "ordered-set")
-   (fn [v] (vec v))))
-
-(def ordered-set-read-handler
-  (t/read-handler #(into (lk/set) %)))
-
-
-;; --- TIME
-
-(def ^:private instant-read-handler
-  (t/read-handler
-   (fn [v] (-> (Long/parseLong v)
-               (Instant/ofEpochMilli)))))
-
-(def ^:private instant-write-handler
-  (t/write-handler
-   (constantly "m")
-   (fn [v] (str (.toEpochMilli ^Instant v)))))
-
-(def ^:private offset-datetime-write-handler
-  (t/write-handler
-   (constantly "m")
-   (fn [v] (str (.toEpochMilli (.toInstant ^OffsetDateTime v))))))
-
-(def +read-handlers+
-  {"matrix"      matrix-read-handler
-   "ordered-set" ordered-set-read-handler
-   "point"       point-read-handler
-   "m"           instant-read-handler
-   "instant"     instant-read-handler})
-
-(def +write-handlers+
-  {File           file-write-handler
-   LinkedSet      ordered-set-write-handler
-   Matrix         matrix-write-handler
-   Point          point-write-handler
-   Instant        instant-write-handler
-   OffsetDateTime offset-datetime-write-handler})
-
-;; --- Low-Level Api
-
-(defn reader
-  ([istream]
-   (reader istream nil))
-  ([istream {:keys [type] :or {type :json}}]
-   (t/reader istream type {:handlers +read-handlers+})))
-
-(defn read!
-  "Read value from streamed transit reader."
-  [reader]
-  (t/read reader))
-
-(defn writer
-  ([ostream]
-   (writer ostream nil))
-  ([ostream {:keys [type] :or {type :json}}]
-   (t/writer ostream type {:handlers +write-handlers+})))
-
-(defn write!
-  [writer data]
-  (t/write writer data))
-
-;; --- High-Level Api
-
-(declare str->bytes)
-(declare bytes->str)
-
-(defn decode-stream
-  ([input]
-   (decode-stream input nil))
-  ([input opts]
-   (read! (reader input opts))))
-
-(defn decode
-  ([data]
-   (decode data nil))
-  ([data opts]
-   (with-open [input (ByteArrayInputStream. ^bytes data)]
-     (decode-stream input opts))))
-
-(defn encode-stream
-  ([data out]
-   (encode-stream data out nil))
-  ([data out opts]
-   (let [w (writer out opts)]
-     (write! w data))))
-
-(defn encode
-  ([data]
-   (encode data nil))
-  ([data opts]
-   (with-open [out (ByteArrayOutputStream.)]
-     (encode-stream data out opts)
-     (.toByteArray out))))
-
-(defn decode-str
-  [message]
-  (->> (str->bytes message)
-       (decode)))
-
-(defn encode-str
-  ([message]
-   (->> (encode message)
-        (bytes->str)))
-  ([message opts]
-   (->> (encode message opts)
-        (bytes->str))))
-
-(defn encode-verbose-str
-  [message]
-  (->> (encode message {:type :json-verbose})
-       (bytes->str)))
-
-;; --- Helpers
-
-(defn str->bytes
-  "Convert string to byte array."
-  ([^String s]
-   (str->bytes s "UTF-8"))
-  ([^String s, ^String encoding]
-   (.getBytes s encoding)))
-
-(defn bytes->str
-  "Convert byte array to String."
-  ([^bytes data]
-   (bytes->str data "UTF-8"))
-  ([^bytes data, ^String encoding]
-   (String. data encoding)))