Fix memory leak issue with devtools (#1335)

Author: hehaijin

.changeset/rich-balloons-prove.md

@@ -0,0 +1,5 @@
+---
+"apollo-client-devtools": patch
+---
+
+Fixed a memory leak issue with devtools

src/extension/messageAdapters.ts

@@ -18,9 +18,6 @@ export function createPortMessageAdapter<
   return {
     addListener(listener) {
       port.onMessage.addListener(listener);
-      port.onDisconnect.addListener(() => {
-        port.onMessage.removeListener(listener);
-      });
 
       return () => {
         port.onMessage.removeListener(listener);