Delete enum VP8ResilienceMode.

We only support on (formely kResilientStream) and off (formely
kResilienceOff). The third mode, kResilientFrames, was not
implemented.

Bug: None
Change-Id: Ida82f6a33eda9d943ea70bc8ae4e6bddb720b0e8
Reviewed-on: https://webrtc-review.googlesource.com/71481
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22984}

modules/video_coding/codecs/vp8/simulcast_test_utility.h

@@ -214,7 +214,7 @@ class TestVp8Simulcast : public ::testing::Test {
     ConfigureStream(kDefaultWidth, kDefaultHeight, kMaxBitrates[2],
                     kMinBitrates[2], kTargetBitrates[2],
                     &settings->simulcastStream[2], temporal_layer_profile[2]);
-    settings->VP8()->resilience = kResilientStream;
+    settings->VP8()->resilienceOn = true;
     settings->VP8()->denoisingOn = true;
     settings->VP8()->automaticResizeOn = false;
     settings->VP8()->frameDroppingOn = true;