Delete setupFetchDebugging.js (#10636)

* Delete setupFetchDebugging.js

* remove fetch-debugging (now handled corrently by sentry)

app/scripts/background.js

@@ -1,12 +1,6 @@
 /**
  * @file The entry point for the web extension singleton process.
  */
-// these need to run before anything else
-/* eslint-disable import/first,import/order */
-import setupFetchDebugging from './lib/setupFetchDebugging';
-/* eslint-enable import/order */
-
-setupFetchDebugging();
 
 // polyfills
 import 'abortcontroller-polyfill/dist/polyfill-patch-fetch';

app/scripts/lib/setupFetchDebugging.js

@@ -1,41 +0,0 @@
-//
-// This is a utility to help resolve cases where `window.fetch` throws a
-// `TypeError: Failed to Fetch` without any stack or context for the request
-// https://github.com/getsentry/sentry-javascript/pull/1293
-//
-
-export default function setupFetchDebugging() {
-  if (!window.fetch) {
-    return;
-  }
-  const originalFetch = window.fetch;
-
-  window.fetch = wrappedFetch;
-
-  async function wrappedFetch(...args) {
-    const initialStack = getCurrentStack();
-    try {
-      return await originalFetch.call(window, ...args);
-    } catch (err) {
-      if (!err.stack) {
-        console.warn(
-          'FetchDebugger - fetch encountered an Error without a stack',
-          err,
-        );
-        console.warn(
-          'FetchDebugger - overriding stack to point of original call',
-        );
-        err.stack = initialStack;
-      }
-      throw err;
-    }
-  }
-}
-
-function getCurrentStack() {
-  try {
-    throw new Error('Fake error for generating stack trace');
-  } catch (err) {
-    return err.stack;
-  }
-}