media: Remove kDisableInfobarForProtectedMediaIdentifier flag.

media/base/media_switches.cc

Index: media/base/media_switches.cc
diff --git a/media/base/media_switches.cc b/media/base/media_switches.cc
index cd3beb1ee3296e15368a42c393b9e2b5f998fc32..41e17d98d45a15e213f6272fe3bffe3fe562b378 100644
--- a/media/base/media_switches.cc
+++ b/media/base/media_switches.cc
@@ -21,10 +21,6 @@ const char kIgnoreResolutionLimitsForAcceleratedVideoDecode[] =
     "ignore-resolution-limits-for-accelerated-video-decode";
 
 #if defined(OS_ANDROID)
-// Disables the infobar popup for accessing protected media identifier.
-const char kDisableInfobarForProtectedMediaIdentifier[] =
-    "disable-infobar-for-protected-media-identifier";
-
 // Sets the MediaSource player that uses the separate media thread
 const char kEnableMediaThreadForMediaPlayback[] =
     "enable-media-thread-for-media-playback";