chore: remove nfs support

Assets will be stored in IndexedDB through memory fs on web.

src/main/frontend/handler/assets.cljs

@@ -5,7 +5,6 @@
             [frontend.common.thread-api :as thread-api :refer [def-thread-api]]
             [frontend.config :as config]
             [frontend.fs :as fs]
-            [frontend.fs.nfs :as nfs]
             [frontend.mobile.util :as mobile-util]
             [frontend.state :as state]
             [frontend.util :as util]
@@ -187,21 +186,7 @@
         (config/db-based-graph? (state/get-current-repo)) ; memory fs
         (p/let [binary (fs/read-file repo-dir path {})
                 blob (js/Blob. (array binary) (clj->js {:type "image"}))]
-          (when blob (js/URL.createObjectURL blob)))
-
-        :else ;; nfs
-        (let [handle-path (str "handle/" full-path)
-              cached-url  (get @*assets-url-cache (keyword handle-path))]
-          (if cached-url
-            (p/resolved cached-url)
-            ;; Loading File from handle cache
-            ;; Use await file handle, to ensure all handles are loaded.
-            (p/let [handle (nfs/await-get-nfs-file-handle repo handle-path)
-                    file   (and handle (.getFile handle))]
-              (when file
-                (p/let [url (js/URL.createObjectURL file)]
-                  (swap! *assets-url-cache assoc (keyword handle-path) url)
-                  url)))))))))
+          (when blob (js/URL.createObjectURL blob)))))))
 
 (defn- decode-digest
   [^js/Uint8Array digest]