FIAM test failing often in CI

[paulb777]

Please fix or disable. Most recently at https://travis-ci.org/firebase/firebase-ios-sdk/jobs/535124299

FIRIAMClearcutUploaderTests
  testUploadNotTriggeredWhenWaitTimeConditionNotSatisfied, ((sendingAttempted) is false) failed
  /Users/travis/build/firebase/firebase-ios-sdk/InAppMessaging/Example/Tests/FIRIAMClearcutUploaderTests.m:150

[self waitForExpectationsWithTimeout:10.0 handler:nil];
XCTAssertFalse(sendingAttempted);
}

[google-oss-bot]

I found a few problems with this issue:

• I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.
• This issue does not seem to follow the issue template. Make sure you provide all the required information.

[paulb777]

The problem isn't the timeout. It's that sendClearcutHttpRequestForLogs:withCompletion: gets triggered.