Filter out AppRegistry logs from output (facebook#47658)

Summary:

Changelog: [internal]

AppRegistry logs are showing up again in Fantom because we changed the order and now they're not necessarily showing up last.

This fixes that by filtering them out in any position.

Differential Revision: D66094274

jest/integration/runner/runner.js

@@ -30,15 +30,10 @@ function parseRNTesterCommandResult(
 ): {logs: string, testResult: TestSuiteResult} {
   const stdout = result.stdout.toString();
 
-  const outputArray = stdout.trim().split('\n');
-
-  // Remove AppRegistry logs at the end
-  while (
-    outputArray.length > 0 &&
-    outputArray[outputArray.length - 1].startsWith('Running "')
-  ) {
-    outputArray.pop();
-  }
+  const outputArray = stdout
+    .trim()
+    .split('\n')
+    .filter(log => !log.startsWith('Running "')); // remove AppRegistry logs.
 
   // The last line should be the test output in JSON format
   const testResultJSON = outputArray.pop();