chore: remove screenshot timeout check (#7206)

Removes the screenshot timeout check, which will cancel the screenshot diff if the last action took longer than 6 minutes. Travis CI will automatically cancel the job if there was no console output for 10 minutes.

tools/gulp/tasks/screenshots.ts

@@ -34,12 +34,6 @@ const FIREBASE_IMAGE = `${TEMP_FOLDER}/screenshot/images`;
 const FIREBASE_DATA_GOLDENS = `screenshot/goldens`;
 const FIREBASE_STORAGE_GOLDENS = 'goldens';
 
-/** Time in ms until the process will be exited if the last action took too long (6 minutes). */
-const lastActionTimeout = 1000 * 60 * 6;
-
-/** Time in ms that specifies how often the last action should be checked (45 seconds). */
-const lastActionRefreshInterval = 1000 * 45;
-
 /** Task which upload screenshots generated from e2e test. */
 task('screenshots', () => {
   const prNumber = process.env['TRAVIS_PULL_REQUEST'];
@@ -52,16 +46,6 @@ task('screenshots', () => {
     const database = firebaseApp.database();
     let lastActionTime = Date.now();
 
-    // If the last action of the task takes longer than 6 minutes, close the firebase connection.
-    const timeoutId = setInterval(() => {
-      if (lastActionTime + lastActionTimeout <= Date.now()) {
-        clearTimeout(timeoutId);
-        console.error('Last action for screenshot tests did not finish in ' +
-            (lastActionTimeout / 1000 / 60) + ' minutes. Closing Firebase connection...');
-        return firebaseApp.delete().then(() => process.exit(1));
-      }
-    }, lastActionRefreshInterval);
-
     console.log(`  Starting screenshots task with results from e2e task...`);
 
     return uploadTravisJobInfo(database, prNumber)
@@ -89,13 +73,11 @@ task('screenshots', () => {
       .then(() => {
         console.log(`  Uploading results done (took ${Date.now() - lastActionTime}ms)`);
         firebaseApp.delete();
-        clearTimeout(timeoutId);
       })
       .catch((err: any) => {
         console.error(`  Screenshot tests encountered an error!`);
         console.error(err);
         firebaseApp.delete();
-        clearTimeout(timeoutId);
       });
   }
 });