syndesizer/websockets: fix connection retraction

src/syndesizer/websockets.nim

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: Unlicense
 
 import std/[asyncdispatch, json]
-import preserves, preserves/jsonhooks
+import preserves
 import syndicate, syndicate/relays
 import ws
 
@@ -20,7 +20,7 @@ proc spawnWebsocketActor*(turn: var Turn; root: Cap): Actor =
         connectedHandle: Handle
       newWebSocket(url).addCallback(turn) do (turn: var Turn; sock: WebSocket):
         ws = sock
-        let connectedHandle = publish(turn, ds, initRecord("connected", url.toPreserves))
+        connectedHandle = publish(turn, ds, initRecord("connected", url.toPreserves))
         var fut: Future[(Opcode, string)]
         proc recvMessage() {.gcsafe.} =
           fut = receivePacket ws