Stop reporting failed transactions to Sentry (#8795)

These error reports are not useful.

app/scripts/background.js

@@ -30,7 +30,6 @@ import NotificationManager from './lib/notification-manager.js'
 import MetamaskController from './metamask-controller'
 import rawFirstTimeState from './first-time-state'
 import setupSentry from './lib/setupSentry'
-import reportFailedTxToSentry from './lib/reportFailedTxToSentry'
 import getFirstPreferredLangCode from './lib/get-first-preferred-lang-code'
 import getObjStructure from './lib/getObjStructure'
 import setupEnsIpfsResolver from './lib/ens-ipfs/setup'
@@ -253,19 +252,6 @@ function setupController (initState, initLangCode) {
     provider: controller.provider,
   })
 
-  // report failed transactions to Sentry
-  controller.txController.on(`tx:status-update`, (txId, status) => {
-    if (status !== 'failed') {
-      return
-    }
-    const txMeta = controller.txController.txStateManager.getTx(txId)
-    try {
-      reportFailedTxToSentry({ sentry, txMeta })
-    } catch (e) {
-      console.error(e)
-    }
-  })
-
   // setup state persistence
   pump(
     asStream(controller.store),

app/scripts/lib/reportFailedTxToSentry.js

@@ -1,14 +0,0 @@
-import extractEthjsErrorMessage from './extractEthjsErrorMessage'
-
-//
-// utility for formatting failed transaction messages
-// for sending to sentry
-//
-
-export default function reportFailedTxToSentry ({ sentry, txMeta }) {
-  const errorMessage = 'Transaction Failed: ' + extractEthjsErrorMessage(txMeta.err.message)
-  sentry.captureMessage(errorMessage, {
-    // "extra" key is required by Sentry
-    extra: { txMeta },
-  })
-}