Remove DISABLED_ON_ macros.

webrtc/modules/video_processing/test/deflickering_test.cc

Index: webrtc/modules/video_processing/test/deflickering_test.cc
diff --git a/webrtc/modules/video_processing/test/deflickering_test.cc b/webrtc/modules/video_processing/test/deflickering_test.cc
index 5bd8d4e003de0e2d578e3ba85741bc3a6185745e..5410015b0656db25b8817831385117f8996dccdf 100644
--- a/webrtc/modules/video_processing/test/deflickering_test.cc
+++ b/webrtc/modules/video_processing/test/deflickering_test.cc
@@ -16,11 +16,14 @@
 #include "webrtc/modules/video_processing/test/video_processing_unittest.h"
 #include "webrtc/system_wrappers/include/tick_util.h"
 #include "webrtc/test/testsupport/fileutils.h"
-#include "webrtc/test/testsupport/gtest_disable.h"
 
 namespace webrtc {
 
-TEST_F(VideoProcessingTest, DISABLED_ON_IOS(Deflickering)) {
+#if defined(WEBRTC_IOS)
+TEST_F(VideoProcessingTest, DISABLED_Deflickering) {
+#else
+TEST_F(VideoProcessingTest, Deflickering) {
+#endif
   enum { NumRuns = 30 };
   uint32_t frameNum = 0;
   const uint32_t frame_rate = 15;