Simplifies StartStopRecording test on iOS.

Bug: webrtc:7888
Change-Id: I0850c3a9dddff43818f345099911e0642744ae5d
Reviewed-on: https://chromium-review.googlesource.com/552545
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Commit-Queue: Henrik Andreasson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#18825}
diff --git a/webrtc/modules/audio_device/ios/audio_device_unittest_ios.mm b/webrtc/modules/audio_device/ios/audio_device_unittest_ios.mm
index 2c22c0f..fd669a9 100644
--- a/webrtc/modules/audio_device/ios/audio_device_unittest_ios.mm
+++ b/webrtc/modules/audio_device/ios/audio_device_unittest_ios.mm
@@ -605,8 +605,6 @@
 TEST_F(AudioDeviceTest, StartStopRecording) {
   StartRecording();
   StopRecording();
-  StartRecording();
-  StopRecording();
 }
 
 // Verify that calling StopPlayout() will leave us in an uninitialized state